Starving bacteria (cyan) use a microscopic harpoon—called the Type VI secretion system—to stab and kill neighboring cells (magenta). The prey burst, turning spherical and leaking nutrients, which the killers then use to survive and grow. (Image Credit: Glen D'Souza/ASU/Screen shot from video)NewsletterSign up for our email newsletter for the latest science newsBacteria are bad neighbors. And we’re not talking noisy, never-take-out-the-trash bad neighbors. We’re talking has-a-harpoon-gun-and-points-it-at-you bad neighbors. According to a new study in Science, some bacteria hunt nearby bacterial species when they’re hungry. Using a special weapon system called the Type VI Secretion System (T6SS), these bacteria shoot, spill, and then absorb the nutrients from the microbes they harpoon. “The punchline is: When things get tough, you eat your neighbors,” said Glen D’Souza, a study author and an assistant professor at Arizona State University, according to a press release. “We’ve known bacteria kill each other, that’s textbook. But what we’re seeing is that it’s not just important that the bacteria have weapons to kill, but they are controlling when they use those weapons specifically for situations to eat others where they can’t grow themselves.” According to the study authors, the research doesn’t just have implications for bacterial neighborhoods; it also has implications for human health and medicine. By harnessing these bacterial weapons, it may be possible to build better targeted antibiotics, designed to overcome antibiotic resistance. Ruthless Bacteria Use HarpoonsResearchers have long known that some bacteria can be ruthless, using weapons like the T6SS to clear out their competition. A nasty tool, the T6SS is essentially a tiny harpoon gun with a poison-tipped needle. When a bacterium shoots the weapon into another bacterium from a separate species, the needle pierces the microbe without killing it. Then, it injects toxins into the microbe that cause its internal nutrients to spill out.Up until now, researchers thought that this weapon helped bacteria eliminate their competition for space and for food, but after watching bacteria use the T6SS to attack their neighbors when food was scarce, the study authors concluded that these tiny harpooners use the weapon not only to remove rivals, but also to consume their competitors’ leaked nutrients.“Watching these cells in action really drives home how resourceful bacteria can be,” said Astrid Stubbusch, another study author and a researcher who worked on the study while at ETH Zurich, according to the press release. “By slowly releasing nutrients from their neighbors, they maximize their nutrient harvesting when every molecule counts.” Absorbing Food From NeighborsTo show that the bacteria used this system to eat when there was no food around, the study authors compared their attacks in both nutrient-rich and nutrient-poor environments. When supplied with ample resources, the bacteria used their harpoons to kill their neighbors quickly, with the released nutrients leaking out and dissolving immediately. But when resources were few and far between, they used their harpoons to kill their neighbors slowly, with the nutrients seeping out and sticking around. “This difference in dissolution time could mean that the killer cells load their spears with different toxins,” D’Souza said in another press release. While one toxin could eliminate the competition for space and for food when nutrients are available, another could create a food source, allowing bacteria to “absorb as many nutrients as possible” when sustenance is in short supply.Because of all this, this weapon system is more than ruthless; it’s also smart, and important to some species’ survival. When genetically unedited T6SS bacteria were put in an environment without food, they survived on spilled nutrients. But when genetically edited T6SS bacteria were placed in a similar environment, they died, because their ability to find food in their neighbors had been “turned off.”Harnessing Bacterial HarpoonsAccording to the study authors, the T6SS system is widely used by bacteria, both in and outside the lab. “It’s present in many different environments,” D’Souza said in one of the press releases. “It’s operational and happening in nature, from the oceans to the human gut.” The study authors add that their research could change the way we think about bacteria and could help in our fight against antibiotic resistance. In fact, the T6SS could one day serve as a foundation for targeted drug delivery systems, which could mitigate the development of broader bacterial resistance to antibiotics. But before that can happen, however, researchers have to learn more about bacterial harpoons, and about when and how bacteria use them, both to beat and eat their neighbors.Article SourcesOur writers at Discovermagazine.com use peer-reviewed studies and high-quality sources for our articles, and our editors review for scientific accuracy and editorial standards. Review the sources used below for this article:Sam Walters is a journalist covering archaeology, paleontology, ecology, and evolution for Discover, along with an assortment of other topics. Before joining the Discover team as an assistant editor in 2022, Sam studied journalism at Northwestern University in Evanston, Illinois.1 free article leftWant More? Get unlimited access for as low as $1.99/monthSubscribeAlready a subscriber?Register or Log In1 free articleSubscribeWant more?Keep reading for as low as $1.99!SubscribeAlready a subscriber?Register or Log In

While updating, upgrading, and reimagining your home can transform it into your dream home, the logistics involved can be daunting, even if you have a general contractor managing the project for you. One of the biggest challenges is setting your budget—unless you have an unlimited budget (lucky you!), determining what a home renovation will involve based on what you can afford is a key aspect of your plan.It’s also one of the most confusing. When budgeting reality bumps up against your dream home fantasy, figuring out what to remove from the project can be difficult because of the emotional aspects involved—everything can seem equally necessary when you’re imagining your future life in the home. In order to pare things down in a coherent and rational way, take a page from business school experts and use the time-tested MoSCoW Method.What is the MoSCoW method?The MoSCoW method was innovated by software developer Dai Clegg in the 1990s as a way to prioritize components of a project in order to stay on schedule and within budget. Although it was initially envisioned as a software development tool (and more widely as a tool for managing business projects in general), it’s malleable enough that it can be ideal for varied circumstances—including getting control of a home renovation project.The method involves breaking all the aspects of your project into four buckets, represented by the letters M, S, C, and W (the Os are just there to make the name more readable). The categories are:Must-haves. These are aspects of the project that are non-negotiable and mandatory.Should-haves. These are parts of the project that aren’t absolutely necessary, but are relatively important.Could-haves. These are smaller details that can easily be removed from the project or added in later if budget allows.Won’t haves. These are aspects of the project that aren’t under consideration at all.The simplicity of the MoSCoW method is its main strength—it’s easy to whip your home reno budget into shape in a short time by plopping everything into the relevant bucket.Using MoSCoW to plan a home renovation projectWhen you’re planning out your home renovation, start dropping each aspect into a bucket as you go:Things that absolutely have to be done are Must Haves. For example, if part of your renovation is replacing a leaking roof, that’s a Must Have—you have no choice, so that cost is baked into your budget from the get-go.Major components of the project that aren’t absolutely necessary fall into the Should Have bucket. If your old hardwood floors are worn but serviceable, replacing them is a big part of what you want to get out of the renovation—but you could leave them in place, or try to refinish them instead of replacing them. These would be the last parts of your project that you remove or downgrade.Grace notes and luxuries go into the Could Have bucket and held there pending how the budget plays out. For example, maybe you’d like your new flooring to have radiant heating. That’s nice, but not an absolute necessity. If money opens up later in the planning, you can toss it in.Finally, there’s the Won’t Have bucket. This might seem like an unnecessary step, since anything not already sorted into a bucket could be considered a Won’t Have. But the exercise of specifically labeling it as a Won’t Have is useful because it brings clarity to your priorities. If you find more budget later, you’ve already prioritized the Could Haves as more deserving of rescue. Won’t Haves aren’t necessarily things you’ll never do—they’re just things you’re not doing now. For example, maybe your HVAC system is a little old and you’re thinking it will need to be replaced in the next few years—but not at this moment, because you’re spending your money on all these other projects. So you put that into the Won’t Have bucket because you know you’ll be returning to it in the future.Once you’ve done an initial categorization of your home renovation, you can start crunching numbers to see if changes are necessary or desired. Maybe you decide, on reflection, that a Should Have is really a Must Have, or vice versa. And if your budget can’t deliver on every priority, you can shift some things into the Could Have bucket and hold them in reserve for the future.Any successful home renovation is as much about planning and prioritization as it is about budget and schedule management, and the MoSCoW Method can help ensure your project is on track before anyone touches a power tool.

ExpressVPN is good at its job. It's easy to be skeptical of any service with a knack for self-promotion, but don't let ExpressVPN's hype distract you from the fact that it keeps its front-page promise of "just working." Outside of solid security, the two best things ExpressVPN offers are fast speeds and a simple interface. Our tests showed only a 7% average drop in download speed and a 2% loss of upload speed, worldwide. And while the lack of extra features may frustrate experienced users, it makes for a true set-and-forget VPN on any platform. This isn't to say ExpressVPN is without flaws — it's nearly bereft of customization options and it's notably more expensive than its competition — but it beats most VPNs in a head-to-head matchup. For this review, we followed our rigorous 10-step VPN testing process, exploring ExpressVPN's security, privacy, speed, interfaces and more. Whether you read straight through or skip to the sections that are most important for you, you should come away with all the information you need to decide whether to subscribe. Editors' note: We're in the process of rebooting all of our VPN reviews from scratch. Once we do a fresh pass on the top services, we'll be updating each review with a rating and additional comparative information. Table of contents Findings at a glance Installing, configuring and using ExpressVPN ExpressVPN speed test: Very fast averages ExpressVPN security test: Checking for leaks How much does ExpressVPN cost? ExpressVPN side apps and bundles Close-reading ExpressVPN's privacy policy Can ExpressVPN change your virtual location? Investigating ExpressVPN's server network Extra features of ExpressVPN ExpressVPN customer support options ExpressVPN background check: From founding to Kape Technologies Final verdict Findings at a glance Category Notes Installation and UI All interfaces are clean and minimalist, with no glitches and not enough depth to get lost in Windows and Mac clients are similar in both setup and general user experience Android and iOS are likewise almost identical, but Android has a nice-looking dark mode Speed Retains a worldwide average of 93% of starting download speeds Upload speeds average 98% of starting speeds Latency rises with distance, but global average stayed under 300 ms in tests Security OpenVPN, IKEv2 and Lightway VPN protocols all use secure ciphers Packet-sniffing test showed working encryption We detected no IP leaks Blocks IPv6 and WebRTC by default to prevent leaks Pricing Base price: $12.95 per month or $99.95 per year Lowest prepaid rate: $4.99 per month Can save money by paying for 28 months in advance, but only once per account 30-day money-back guarantee Bundles ExpressVPN Keys password manager and ID alerts included on all plans Dedicated IP addresses come at an extra price ID theft insurance, data removal and credit scanning available to new one-year and two-year subscribers for free 1GB eSIM deal included through holiday.com Privacy policy No storage of connection logs or device logs permitted The only risky exceptions are personal account data (which doesn't leave the ExpressVPN website) and marketing data (which the policy says should be anonymized) An independent audit found that ExpressVPN's RAM-only server infrastructure makes it impossible to keep logs Virtual location change Successfully unblocked five international Netflix libraries, succeeding on 14 out of 15 attempts Server network 164 server locations in 105 countries 38% of servers are virtual, though most virtual locations are accessed through physical servers within 1,000 miles A large number of locations in South America, Africa and central Asia Features Simple but effective kill switch Can block ads, trackers, adult sites and/or malware sites but blocklists can't be customized Split tunneling is convenient but unavailable on iOS and modern Macs Aircove is the best VPN router, albeit expensive Customer support Setup and troubleshooting guides are organized and useful, with lots of screenshots and videos Live chat starts with a bot but you can get to a person within a couple minutes Email tickets are only accessible from the mobile apps or after live chat has failed Background check Founded in 2009; based in the British Virgin Islands Has never been caught selling or mishandling user data Turkish police seized servers in 2017 but couldn't find any logs of user activity Owned by Kape Technologies, which also owns CyberGhost and Private Internet Access A previous CIO formerly worked on surveillance in the United Arab Emirates; no evidence of shady behavior during his time at ExpressVPN Windows Version 12 leaked some DNS requests when Split Tunneling was active Installing, configuring and using ExpressVPN This section focuses on how it feels to use ExpressVPN on each of the major platforms where it's available. The first step for any setup process is to make an account on expressvpn.com and buy a subscription. Windows Once subscribed, download the Windows VPN from either expressvpn.com or the Microsoft Store, then open the .exe file. Click "Yes" to let it make changes, wait for the install, then let your computer reboot. Including the reboot, the whole process takes 5-10 minutes, most of it idle. To finish, you'll need your activation code, which you can find by going to expressvpn.com and clicking "Setup" in the top-right corner. You can install ExpressVPN's Windows app from the Microsoft store, but we found the website more convenient. Sam Chapman for Engadget Extreme simplicity is the watchword for all ExpressVPN's designs. The Windows client's launch panel consists of three buttons and less than ten words. You can change your location or let the app pick a location for you — the "Smart Location" is the server with the best combination of being nearby and unburdened. Everything else is crammed into the hamburger menu at the top left. Here, in seven tabs, you'll find the Network Lock kill switch, the four types of content blockers, the split tunneling menu and the option to change your VPN protocol. You can also add shortcuts to various websites, useful if you regularly use your VPN for the same online destinations. To sum up, there's almost nothing here to get in the way: no delays, no snags, no nested menus to get lost in. It may be the world's most ignorable VPN client. That's not a bad thing at all. Mac ExpressVPN's app for macOS is almost identical in design to its Windows app. The process for downloading and setting it up is nearly the same too. As on Windows, it can be downloaded from the App Store or sideloaded directly from the expressvpn.com download center. Only a few features are missing and a couple others have been added. Split tunneling is gone (unless you're still on a macOS lower than 11), and you won't see the Lightway Turbo setting. ExpressVPN recommends some servers, but it's easy to search the whole list. Sam Chapman for Engadget Mac users do gain access to the IKEv2 protocol, along with the option to turn off automatic IPv6 blocking — Windows users have to leave it blocked at all times. Almost every website is still accessible via IPv4, but it's useful if you do need to access a specific IPv6 address while the VPN is active. Android Android users can download ExpressVPN through the Google Play Store. Open the app, sign in and you're ready to go. The Android app has a very nice dark-colored design, only slightly marred by an unnecessary information box about how long you've used the VPN this week. ExpressVPN's Android app puts a little more information on the screen than it needs to, but still runs well. Sam Chapman for Engadget There's a large button for connecting. Clicking on the server name takes you to a list of locations. On this list, you can either search or scroll and can choose individual locations within a country that has more than one. We connected to as many far-flung server locations as we could, but not a single one took longer than a few seconds. The options menu is organized sensibly, with no option located more than two clicks deep. You will see a couple of options here that aren't available on desktop, the best of which is the ability to automatically connect to your last-used ExpressVPN server whenever your phone connects to a non-trusted wifi network. There are also a few general security tools: an IP address checker, DNS and WebRTC leak testers and a password generator. These are also available on the website, but here, they're built into the app. With the exception of the latter, we'd recommend using third-party testing tools instead — even a VPN with integrity has an incentive to make its own app look like it's working. iPhone and iPad You can only install ExpressVPN's iOS app through the app store. During setup, you may need to enter your password to allow your phone to use VPN configurations. Otherwise, there are no major differences from the Android process. ExpressVPN looks good on iPhone and iPad. Sam Chapman for Engadget The interface is not quite as pleasing as the dark-mode Android app, but it makes up for that by cutting out some of the clutter. The tabs and features are similar, though split tunneling and shortcuts are absent. Also, both mobile apps make customer support a lot more accessible than their desktop counterparts — plus, mobile is the only way to send email support tickets. Browser extension ExpressVPN also includes browser extensions for Firefox and Chrome. These let you connect, disconnect and change server locations without leaving your browser window. It's nice, but not essential unless you have a very specific web browser flow you like. ExpressVPN speed test: Very fast averages Connecting to a VPN almost always decreases your speed, but the best VPNs mitigate the drop as much as possible. We used Ookla's speed testing app to see how much of your internet speed ExpressVPN preserves. For this test, we emphasized the locations ExpressVPN uses for most of its virtual servers, including the Netherlands, Brazil, Germany and Singapore. Some terms before we start: Latency, measured in milliseconds (ms), is the time it takes one data packet to travel between your device and a web server through the VPN. Latency increases with distance. It's most important for real-time tasks like video chatting and online gaming. Download speed, measured in megabits per second (Mbps), is the amount of information that can download onto your device at one time — such as when loading a web page or streaming a video. Upload speed, also measured in Mbps, is the amount of information your device can send to the web at once. It's most important for torrenting, since the amount of data you can seed determines how fast you can download in exchange. The table below shows our results. We conducted this on Windows, using the automatic protocol setting with the Lightway Turbo feature active — a recent ExpressVPN addition that keeps speed more consistent by processing connections in parallel. Server location Latency (ms) Increase factor Download speed (Mbps) Percentage dropoff Upload speed (Mbps) Percentage dropoff Portland, Oregon, USA (unprotected) 18 -- 58.77 -- 5.70 -- Seattle, Washington, USA (best server) 26 1.4x 54.86 6.7% 5.52 3.2% New York, NY, USA 156 8.7x 57.25 2.6% 5.57 2.3% Amsterdam, Netherlands 306 17x 53.83 8.4% 5.58 2.1% São Paulo, Brazil 371 20.6x 53.82 8.4% 5.65 0.9% Frankfurt, Germany 404 22.4x 55.71 5.2% 5.67 0.5% Singapore, Singapore 381 21.2x 52.76 10.2% 5.64 1.0% Average 274 15.2x 54.71 6.9% 5.61 1.6% These are extremely good results. ExpressVPN is a winner on both download and upload speed. No matter where we went in the world, we never lost more than about 7% of our download speeds, and upload lost an astoundingly low average of 2%. This suggests that ExpressVPN deftly distributes its user load between servers to eliminate bottlenecks. This Ookla speedtest shows you can still get fast internet while connected to ExpressVPN -- our unprotected speeds are around 58 Mbps. Sam Chapman for Engadget The latency numbers look worse, but the rise in the table is less sharp than we projected. Ping length depends far more on distance than download speed does, so we expect it to shoot up on servers more than 1,000 miles from our location. Keeping the average below 300 ms, as ExpressVPN does here, is a strong showing. ExpressVPN security test: Checking for leaks A VPN's core mission is to hide your IP address and make you untraceable online. Our task in this section is to figure out if ExpressVPN can carry out this mission every time you connect. While we can't be 100% certain, the tests we'll run through below have led us to believe that ExpressVPN is currently leak-proof. Available VPN protocols A VPN protocol is like a common language that a VPN server can use to mediate between your devices and the web servers you visit. If a VPN uses outdated or insecure protocols, or relies on unique protocols with no visible specs or source code, that's a bad sign. Not all protocols are available on all apps, but Mac has the full range. Sam Chapman for Engadget ExpressVPN gives you a selection of three protocols: IKEv2, OpenVPN and Lightway. The first two are solid choices that support the latest encryption algorithms. OpenVPN has been fully open-source for years and is the best choice if privacy is your goal. While IKEv2 started life as a closed project by Microsoft and Cisco, ExpressVPN uses an open-source reverse-engineering, which is both better for privacy and quite fast. Lightway is the odd one out, a protocol you'll only find on ExpressVPN, though its source code is available on Github. It's similar to WireGuard, in that both reach for faster speeds and lower processing demands by keeping their codebases slim. However, Lightway was recently rewritten in Rust to better protect the keys stored in its memory. Ultimately, you can't go wrong with any of ExpressVPN's protocol options. 99% of the time, your best choice will be to set the controls to Automatic and let the VPN decide which runs best. Testing for leaks ExpressVPN is one of the best services, but it's not leak-proof (as you can read in the Background Check below). Luckily, checking for DNS leaks is a simple matter of checking your IP address before and after connecting to a VPN server. If the new address matches the VPN server, you're good; if not, your VPN is leaking. First, we checked the Windows app with split tunneling active to ensure the flaw really had been patched. We tested several servers and didn't find any leaks, which suggests the patch worked, though leaks were rare even before ExpressVPN fixed the vulnerability. We checked our IP while connected to the virtual India location, which is run from a physical server in Singapore. Don't worry -- it still looks like India to streaming services. Sam Chapman for Engadget In fact, we didn't find any leaks on any ExpressVPN server we tested on any platform. Though questions remain about iOS, as you'll see later in this section, that's a problem on Apple's end that even the best VPNs can do very little about for now. The most common cause of VPN leaks is the use of public DNS servers to connect users to websites, which can mistakenly send browsing activity outside the VPN's encrypted tunnel. ExpressVPN avoids the risks of the public system by installing its own DNS resolvers on every server. This is the key factor behind its clean bill of health in our leak testing. Two other common flaws can lead to VPN leaks: WebRTC traffic and IPv6. The former is a communication protocol used in live streaming and the latter is a new IP standard designed to expand domain availability. Both are nice, but currently optional, so ExpressVPN automatically blocks both to ensure there's no opportunity for leaks to arise. One note about VPN security on iOS: it's a known and continuing problem that iOS VPNs do not prevent many online apps from communicating with Apple directly, outside the VPN tunnel. This risks leaking sensitive data, even with Lockdown Mode active in iOS 16. A blog post by Proton VPN shares a workaround: connect to a VPN server, then turn Airplane Mode on and off again to end all connections that were active before you connected to the VPN. Testing encryption We finished up our battery of security tests by checking out ExpressVPN's encryption directly. Using WireShark, a free packet sniffer, we inspected what it looks like when ExpressVPN transmits data from one of its servers to the internet. The screenshot below shows a data stream encrypted with Lightway UDP. After connecting to ExpressVPN, HTTP packets were rendered unreadable while in transit. Sam Chapman for Engadget That lack of any identifiable information, or even readable information, means encryption is working as intended. We repeated the test several times, always getting the same result. This left us satisfied that ExpressVPN's core features are working as intended. How much does ExpressVPN cost? ExpressVPN subscriptions cost $12.95 per month. Long-term subscriptions can bring the monthly cost down, but the great deals they offer tend to only last for the first billing period. A 12-month subscription costs $99.95 and includes three months for free with your first payment, costing a total of $6.67 per month. The bonus disappears for all subsequent years, raising the monthly cost to $8.33. You can also sign up for 28 months at a cost of $139.72, but this is also once-only — ExpressVPN can only be renewed at the $99.95 per year level. There are two ways to test ExpressVPN for free before making a financial commitment. Users on iOS and Android can download the ExpressVPN app without entering any payment details and use it free for seven days. On any platform, there's a 30-day money-back guarantee, which ExpressVPN has historically honored with no questions asked. You will have to pay before you can use it, though. In our opinion, ExpressVPN's service is solid enough that it's worth paying extra. Perhaps not this much extra, but that depends on what you get out of it. We recommend using the 30-day refund period and seeing how well ExpressVPN works for you. If it's a VPN you can enjoy using, that runs fast and unblocks everything you need, that's worth a server's weight in gold. ExpressVPN side apps and bundles ExpressVPN includes some special features that work mostly or wholly separate from its VPN apps. Some of these come free with a subscription, while others add an extra cost. Every subscription includes the ExpressVPN keys password manager. This is available under its own tab on the Android and iOS apps. On desktop, you'll need to download a separate extension from your browser's store, then sign in using your account activation code. It's available on all Chromium browsers, but not Firefox. Starting in 2025, new subscribers get an eSIM plan through holiday.com, a separate service linked to ExpressVPN. The baseline 1GB holiday eSIM plans last for 5 days and can apply to countries, regions, or the entire world (though it's not clear whether the package deal applies to the regional and global plans). Longer-term plans include larger eSIM plans. You can add a dedicated IP address to your ExpressVPN subscription for an additional cost per month. A dedicated IP lets you use the same IP address every time you connect to ExpressVPN. You can add the address to whitelists on restricted networks, and you're assured to never be blocked because of someone else's bad activity on a shared IP. Unlike many of its competitors, ExpressVPN doesn't currently offer antivirus or online storage services, but there is a comprehensive bundle of ID protection tools called Identity Defender. We haven't reviewed any of these products in detail, but here's a list for reference: ID Alerts will inform you if any of your sensitive information is leaked or misused online. It's free with all plans, but you'll have to enter your personal information on your ExpressVPN account page or a mobile app. ID Theft Insurance grants up to $1 million in identity theft reimbursement and comes free with new ExpressVPN one-year or two-year subscriptions. It's not yet available to those who subscribed before it launched in October 2024. Data Removal scans for your information in data brokerages and automatically requests that it be deleted. It's also free with one-year and two-year plans. Credit Scanner is only available for United States users. It monitors your activity on the three credit bureaus so you can quickly spot any suspicious transactions. The Identity Defender features are currently only available to new ExpressVPN customers in the US. Close-reading ExpressVPN's privacy policy Although we worry that the consolidation of VPN brands under the umbrella of Kape Technologies (ExpressVPN's parent company) will make the industry less competitive, we don't believe it's influencing ExpressVPN to take advantage of its users' privacy. To confirm, and get a full sense of what sort of privacy ExpressVPN promises its users, we set out to read ExpressVPN's privacy policy in detail. It's long, but thankfully aimed at casual users instead of lawyers. You can see it for yourself here. In the introduction, ExpressVPN states that it does not keep either activity logs (such as a user's browsing history while connected to the VPN) or connection logs (such as the duration of a user's session and their IP address, which can be used to extrapolate browsing activity). It then specifies the seven types of data it's legally allowed to collect: Data used to sign up for an account, such as names, emails and payment methods. VPN usage data which is aggregated and can't be traced to any individual. Credentials stored in the ExpressVPN Keys password manager. Diagnostic data such as crash reports, which are only shared upon user request. IP addresses authorized for MediaStreamer, which is only for streaming devices that don't otherwise support VPN apps. Marketing data collected directly from the app — a "limited amount" that's kept anonymous. Data voluntarily submitted for identity theft protection apps. Of those seven exceptions, the only ones that count as red flags are account data and marketing data. Both categories are highly personal and could be damaging if mishandled. Fortunately, complying with subpoenas is not one of the allowed uses listed for either data category, nor does the policy let ExpressVPN sell the data to other private parties. The only really annoying thing here is that if you ask ExpressVPN to delete your personal data, you won't be able to use your account from then on. You aren't even eligible for a refund in this case, unless you're within 30 days of your initial subscription. As for marketing data, ExpressVPN collects device fingerprints and location data when you sign up for an account on its website. The privacy policy also claims this is anonymized, as its "systems are engineered to decouple such data from personally identifiable information." Audits corroborate this, as we'll see in the next section. So, while it would be better if ExpressVPN didn't collect any personal data at all, its practices don't appear to pose a risk to anything you do while using the VPN — just the ExpressVPN website. Privacy audits VPN providers often get third-party accounting firms to audit their privacy policies. The idea is that a well-known firm won't mortgage its reputation to lie on behalf of a VPN, so their results can be trusted. For the last several years, ExpressVPN has had KPMG look over its privacy policy and relevant infrastructure (see "TrustedServer" below). KPMG's most recent report, completed in December 2023 and released in May 2024, found that ExpressVPN had enough internal controls in place that users could trust its privacy policy. The report is freely available to read. This is a very good sign, though we're looking out for a more up-to-date audit soon. TrustedServer "TrustedServer" is a marketing term ExpressVPN uses for its RAM-only server infrastructure. RAM-only servers have no hard drives for long-term storage and return to a standard disk image with every reboot. This makes it theoretically impossible to store user activity logs on them, even if ExpressVPN wanted to do that. The KPMG audit, linked above, reports that TrustedServer works as advertised. Between its many clean privacy audits and the Turkish server incident in 2017, we're prepared to say ExpressVPN is a private VPN, in spite of its aggravating exception for marketing. Can ExpressVPN change your virtual location? Next, we tested whether ExpressVPN can actually convince websites that you're somewhere other than your real location. Our security tests have already proven it can hide your IP address, but it takes more than leak-proofing to fool streaming sites these days — Netflix and the others have gotten very good at combing through metadata to sniff out proxy users. The process for testing this is a lot like how we handled the DNS leak tests: try several different servers and see if we get caught. We checked five sample locations outside the U.S. to see if we a) got into Netflix and b) saw different titles in the library. The results are below. Server Location Unblocked Netflix? Library changed? Canada Y Y United Kingdom Y (second try; Docklands failed) Y Slovakia Y Y India Y Y (different from UK library) Australia Y Y In fifteen tests, ExpressVPN slipped up only once. Docklands, the UK server it chose as the fastest, wasn't able to access Netflix. We switched to a server labeled simply "London" and unblocked it without issue. ExpressVPN can change your virtual location so you can explore the wonderful world of K-drama. Sam Chapman for Engadget All the other locations got us access to an alternate Netflix library on the first try. We even checked whether the India server, which is physically located in the UK, showed us different videos than the UK servers. It did, which makes us even more confident that ExpressVPN's virtual locations are airtight. Investigating ExpressVPN's server network ExpressVPN users can connect to a total of 164 server locations in 105 countries and territories. These locations are reasonably well distributed across the globe, but as with all VPNs, there's a bias toward the northern hemisphere. There are 24 locations in the U.S. alone and a further 66 in Europe. That isn't to say users in the Global South get nothing. ExpressVPN has IP addresses from nine nations in South America (Argentina, Brazil, Bolivia, Chile, Colombia, Ecuador, Peru, Uruguay and Venezuela) and six in Africa (Algeria, Egypt, Ghana, Kenya, Morocco and South Africa). The network even includes Kazakhstan, Uzbekistan and Mongolia, impressive since central Asia may be the region most often shafted by VPNs. However, many of these servers have virtual locations different from their real ones. For those of you choosing a server based on performance instead of a particular IP address, ExpressVPN's website has a helpful list of which servers are virtual. The bad news is that it's a big chunk of the list. A total of 63 ExpressVPN locations are virtual, or 38% of its entire network. To reduce the sting, ExpressVPN takes care to locate virtual servers as close to their real locations as possible. Its virtual locations in Indonesia and India are physically based in Singapore. This isn't always practical, leading to some awkwardness like operating a Ghana IP address out of Germany. But it helps ExpressVPN perform better in the southern hemisphere. Extra features of ExpressVPN Compared to direct competitors like NordVPN and Surfshark, ExpressVPN doesn't have many special features. It's aimed squarely at the casual market and will probably disappoint power users. Having said that, what they do include works well. In this section, we'll run through ExpressVPN's four substantial features outside its VPN servers themselves. Network Lock kill switch "Network Lock" is the name ExpressVPN gives to its kill switch (though it's called "Network Protection" on mobile). A VPN kill switch is a safety feature that keeps you from broadcasting outside the VPN tunnel. If it ever detects that you aren't connected to a legitimate ExpressVPN server, it cuts off your internet access. You won't be able to get back online until you either reconnect to the VPN or disable Network Lock. ExpressVPN's kill switch is called Network Lock on desktop, and Network Protection on mobile (Android pictured) Sam Chapman for Engadget This is important for everyone, not just users who need to hide sensitive traffic. The recently discovered TunnelVision bug theoretically allows hackers to set up fake public wi-fi networks through which they redirect you to equally fake VPN servers, which then harvest your personal information. It's unlikely, but not impossible, and a kill switch is the best way to prevent it — the switch always triggers unless you're connected to a real server in the VPN's network. Like most of ExpressVPN's features, all you can do with Network Lock is turn it on and off. You can also toggle whether you'll still be able to access local devices while the kill switch is blocking your internet — this is allowed by default. Threat manager, ad blocker and parental controls ExpressVPN groups three tools under the heading of "advanced protection" — Threat Manager, an ad blocker and parental controls. Threat Manager consists of two checkboxes: one that blocks your browser from communicating with activity tracking software and one that blocks a list of websites known to be used for malware. Check any of these boxes to use the pre-set blocklists whenever you're connected to ExpressVPN. Sam Chapman for Engadget You can't customize the lists, so you're limited to what ExpressVPN considers worthy of blocking. They share their sources on the website. While the lists are extensive and open-source, they rely on after-the-fact reporting and can't detect and block unknown threats like a proper antivirus. The adblock and parental control options work the same way: check a box to block everything on the list, uncheck it to allow everything through. In tests, the ad blocker was nearly 100% effective against banner ads, but failed to block any video ads on YouTube or Netflix. The parental control option blocks a list of porn sites. It's an easy option for concerned parents, but only works while ExpressVPN is connected. As such, it's meant to be used in conjunction with device-level parental controls that prevent the child from turning off or uninstalling the VPN client. Split tunneling Sometimes, you'll find it helpful to have your device getting online through two different IP addresses at once — one for your home services and one for a location you're trying to spoof. That's where split tunneling is helpful: it runs some apps through the VPN while leaving others unprotected. This can also improve your speeds, since the VPN needs to encrypt less in total. You can configure split tunneling through either a blocklist or an allowlist. Sam Chapman for Engadget ExpressVPN includes split tunneling on Windows, Android and Mac (though only on versions 10 and below). You can only split by app, not by website, but it's still pretty useful. For example, you can have BitTorrent handling a heavy download in the background while you use your browser for innocuous activities that don't need protecting. ExpressVPN Aircove router By now, it should be clear that we find ExpressVPN to be a highly reliable but often unexceptional VPN service. However, there's one area in which it's a clear industry leader: VPN routers. ExpressVPN Aircove is, to our knowledge, the only router with a built-in commercial VPN that comes with its own dashboard interface. Usually, installing a VPN on your router requires tinkering with the router control panel, which turns off all but the most experienced users — not to mention making it a massive pain to switch to a new server location. Aircove's dashboard, by contrast, will be instantly familiar to anyone who already knows how to use an ExpressVPN client. It even allows different devices in your home to connect to different locations through the router VPN. Aircove's biggest drawback is its price. Currently retailing at $189 (not including an ExpressVPN subscription), it's around three times more expensive than an aftermarket router fitted with free VPN firmware. Some of you might still find the convenience worth the one-time payment. ExpressVPN customer support options ExpressVPN's written help pages are some of the best on the market. Its live chat is more of a mixed bag, and complex questions may cause delays. However, it is at least staffed with human agents who aim to reply accurately, rather than resolve your ticket as quickly as possible. You can directly access both live chat and email from ExpressVPN's mobile apps (on desktop, you'll have to go to the website). Sam Chapman for Engadget We approached ExpressVPN's support features with a simple question: "If I requested that ExpressVPN delete all my personal data, would I be able to get a refund for my unused subscription time?" (Remember from the Privacy Policy section that submitting a full deletion request also cancels your ExpressVPN account.) Our first stop was expressvpn.com/support, the written support center and FAQ page. It's divided into setup guides, troubleshooting, account management and information on each of ExpressVPN's products. The setup guides are excellent, including screenshots and clearly written steps; each one includes a video guide for those who learn better that way. Troubleshooting is just as good — no videos, but the same standards of clarity and usefulness prevail. The section starts with general problems, then delves into specific issues you might face on each operating system. Each article clearly derives from a real customer need. The live support experience To get answers on our refund question, we visited the account management FAQs. This section stated that the refund policy only applies within 30 days of purchase. Pretty clear-cut, but we still wanted an answer on our special case, so we contacted live chat by clicking the button at the bottom-right of every FAQ page. Live chat is in the bottom-right corner of every page of expressvpn.com. Sam Chapman for Engadget Live chat starts with an AI assistant, which is not too hard to get past — just ask it a question it can't answer, then click "Transfer to an Agent." We got online with (what claimed to be) a human in less than a minute. Answering the question took longer and involved an uncomfortable 10-minute silence, but we did get a clear verdict from a real person: refunds are within 30 days only, no matter what. If the live chat agent can't answer your question, you'll be redirected to open an email support ticket. Annoyingly, there's no way to go directly to email support through the website or desktop apps, though mobile users have the option to skip directly there. ExpressVPN background check: From founding to Kape Technologies ExpressVPN launched in 2009, which makes it one of the oldest consumer VPNs in continual operation. In more than 15 years of operation, it's never been caught violating its own privacy policy, though its record isn't free of more minor blemishes. Headquarters in the British Virgin Islands Founders Dan Pomerantz and Peter Burchhardt registered the company in the British Virgin Islands from the start to take advantage of that territory's favorable legal environment for online privacy. The BVIs have no law requiring businesses to retain data on their users, and the process for extraditing data is famously difficult, requiring a direct order from the highest court. In 2021, the BVI implemented the Data Protection Act (DPA) [PDF link], which prevents companies based in the territory from accessing data on their users anywhere in the world. It's a great privacy law in theory, modeled on best-in-class legislation in the EU. However, we couldn't find any evidence that its supervising authority — the Office of the Information Commissioner — has a leader or staff. In other words, while ExpressVPN is not legally required to log any data on its users, there's technically nobody stopping them from doing so. Whether you trust the jurisdiction depends on whether you trust the company itself. Let's see what the other evidence says. Security and privacy incidents Two significant incidents stand out from ExpressVPN's 16-year history. In 2017, when Andrei Karlov, Russia's ambassador to Turkey, was shot to death at an art show. Turkish police suspected someone had used ExpressVPN to mask their identity while they deleted information from social media accounts belonging to the alleged assassin. To investigate, they confiscated an ExpressVPN server to comb for evidence. They didn't find anything. A police seizure is the best possible test of a VPN's approach to privacy. The provider can't prepare beforehand, fake anything, or collude with investigators. The Turkey incident is still one of the best reasons to recommend ExpressVPN, though eight years is a long time for policy to change. The second incident began in March 2024, when a researcher at CNET informed ExpressVPN that its version 12 for Windows occasionally leaked DNS requests when users enabled the split tunneling feature. While these users remained connected to an ExpressVPN server, their browsing activity was often going directly to their ISP, unmasked. The bug only impacted a few users, and to their credit, ExpressVPN sprang into action as soon as they learned about it. The team had it patched by April, as confirmed by the researcher who initially discovered the vulnerability. But while their quick and effective response deserves praise, it's still a mark against them that a journalist noticed the bug before they did. Kape Technologies ownership and management questions In 2021, an Israeli-owned, UK-based firm called Kape Technologies purchased a controlling interest in ExpressVPN. In addition to ExpressVPN, privately held Kape owns CyberGhost, Private Internet Access, and Zenmate (before it merged into CyberGhost). As shown on its website, it also owns Webselenese, publisher of VPN review websites WizCase and vpnMentor, which poses an apparent conflict of interest. When reached for comment, a representative for ExpressVPN said that "ExpressVPN does not directly engage with, nor seek to influence, the content on any Webselenese site," and pointed us to disclosure statements on the websites in question — here's one example. Even so, it's a good reminder not to take VPN reviews at face value without knowing who's behind them (Engadget is owned by Yahoo, which does not own any VPNs). Diving deeper into the background of Kape's ownership will lead you to owner Teddy Sagi. Go back far enough, and you'll see he did prison time in Israel and was mentioned in the Pandora Papers, among other things. More recently, headlines about the billionaire have focused more his businesses in the online gambling and fintech arenas, as well as his real estate ventures. An ExpressVPN representative told us that "Kape's brands continue to operate independently," and our investigation bore that out — we couldn't find any proof that Kape or Sagi have directly attempted to influence ExpressVPN's software or daily operations. Closer to the immediate day-to-day operations of ExpressVPN was the company's employment of Daniel Gericke as CTO from 2019 through 2023. During that time, the US Justice Department announced it had fined Gericke and two others for their previous employment on a surveillance operation called Project Raven, which the United Arab Emirates (UAE) used to spy on its own citizens. The revelation prompted a public response from ExpressVPN defending its decision to hire Gericke, arguing that "[t]he best goalkeepers are the ones trained by the best strikers." ExpressVPN's representative confirmed that the company still stands by that linked statement. Gericke parted ways with ExpressVPN in October 2023, per his LinkedIn profile. While we don't know what we don't know, we can say that ExpressVPN has not notably changed its public-facing security and privacy policies during the time it's been connected to Kape, Sagi, or Gericke. In the end, how much ExpressVPN's history matters to you is a personal choice. If you object to any current or past actions by Kape Technologies or Teddy Sagi, there are other premium VPN options you might prefer. If you need more information to make up your mind, we recommend reading through CNET's 2022 deep dive on ExpressVPN's corporate history. Final verdict ExpressVPN is the VPN we most often recommend to beginners. It takes zero training to use, and consistently gets past filters on streaming sites. It also runs in the background with virtually no impact. If anything is worth the high price of admission, it's the excellent speeds distributed evenly across the worldwide server network. However, for certain specific cases, ExpressVPN may not be the best choice. There's no way to set up your own server locations, like NordVPN offers, and no double VPN connections, like you can build for yourself on Surfshark. Its corporate background is more suspect than the entities backing Proton VPN, and unlike Mullvad, ExpressVPN doesn't work in China — it's so well-known that the government targets its servers specifically. We suggest going with ExpressVPN for general online privacy, for spoofing locations in your home country while traveling, or if you regularly need to unblock sites in other countries. That encompasses 19 of every 20 users, which is fine by us, as ExpressVPN is a great service. It's just more of a reliable old screwdriver than a multi-tool. This article originally appeared on Engadget at https://www.engadget.com/cybersecurity/vpn/expressvpn-review-2025-fast-speeds-and-a-low-learning-curve-160052884.html?src=rss

May 31, 2025: Our weekly roundup of the latest science in the news, as well as a few fascinating articles to keep you entertained over the weekend.

White House Chief of Staff Susie Wiles uses a phone as she attends a National Day of Prayer event hosted by President Donald Trump in the Rose Garden at the White House, May 1, 2025 in Washington / Image credits - Andrew Harnik/Getty Images The personal phone of Susie Wiles, the U.S. President Donald Trump’s chief of staff, was allegedly hacked, with the individual responsible obtaining access to a bevy of contacts, including high-profile officials. According to the latest report, a federal probe has been launched, but there is no confirmation on how the phone was compromised in the first place. The contacts present in Susie Wiles’ phone grew suspicious after the impersonator asked to move the conversation to Telegram, risking the leaking of sensitive information Shortly after gaining access to the White House chief of staff’s personal phone, the hackers leveraged AI to impersonate Wiles’ likeness and sent multiple contacts voice and text messages from a different number. It was only after the person or persons on the other end recommended continuing the conversation to a private platform like Telegram that the contacts realized that something was off. FBI Director Kash Patel shared the following statement with CBS News regarding the incident. “The FBI takes all threats against the President, his staff, and our cybersecurity with the utmost seriousness; safeguarding our administration officials’ ability to securely communicate to accomplish the President's mission is a top priority.” As for how Wiles’ phone was compromised, TechCrunch asked White House spokesperson Anna Kelly if a cloud account associated with the chief of staff’s device was compromised, or if her handset was a part of a more sophisticated attack involving government-grade spyware. Unfortunately, the outlet did not receive a meaningful response, suggesting that the investigation is still ongoing. This is the second incident in which Wiles has been targeted by hackers, with the first instance transpiring in 2024, when it was reported that Iranian cyber-espionage experts attempted to obtain access to her personal email account. A separate report claims that these individuals were successful in bypassing the security as they obtained a dossier on Vice President JD Vance, who was Donald Trump’s running mate at the time. Going over a few images, we realized that the U.S. President’s chief of staff is currently in possession of an iPhone, which should cause even more concern because Apple prides itself on its robust security and privacy. News Source: The Wall Street Journal

Apple's WWDC 25 may change not just the numbering but also absolutely everything about how macOS, iOS, and iPadOS feel, Nothing's CEO says Apple has lost all creativity, and yet more tariff drama, all on this' week's episode of the AppleInsider Podcast.Mockup of an iOS 26 logoWe're so close now to WWDC that more details appear to be leaking out, including the surprise news that Apple may renumber all of its operating systems so that they have the same, consistent branding. It turns out that it's 12 years since Apple started naming macOS with Californian placenames — and for about 11 years before that, it was using cat names. So maybe it's time.It definitely is not the time for Nothing CEO's vision of the future, but he insists that in less than a decade, all apps will be gone, replaced by a single AI on a (presumably) Nothing phone. And back somewhere closer to the real world, future iPhones are now rumored to feature 200 megapixel cameras, but we break down why that's not something to get excited about just yet. Continue Reading on AppleInsider | Discuss on our Forums

Published May 27, 2025 10:00am EDT close Deepfake technology 'is getting so easy now': Cybersecurity expert Cybersecurity expert Morgan Wright breaks down the dangers of deepfake video technology on 'Unfiltered.' Imagine your phone rings and the voice on the other end sounds just like your boss, a close friend, or even a government official. They urgently ask for sensitive information, except it's not really them. It's a deepfake, powered by AI, and you're the target of a sophisticated scam. These kinds of attacks are happening right now, and they're getting more convincing every day.That's the warning sounded by the 2025 AI Security Report, unveiled at the RSA Conference (RSAC), one of the world's biggest gatherings for cybersecurity experts, companies, and law enforcement. The report details how criminals are harnessing artificial intelligence to impersonate people, automate scams, and attack security systems on a massive scale.From hijacked AI accounts and manipulated models to live video scams and data poisoning, the report paints a picture of a rapidly evolving threat landscape, one that's touching more lives than ever before. Illustration of cybersecurity risks. (Kurt "CyberGuy" Knutsson)AI tools are leaking sensitive dataOne of the biggest risks of using AI tools is what users accidentally share with them. A recent analysis by cybersecurity firm Check Point found that 1 in every 80 AI prompts includes high-risk data, and about 1 in 13 contains sensitive information that could expose users or organizations to security or compliance risks.This data can include passwords, internal business plans, client information, or proprietary code. When shared with AI tools that are not secured, this information can be logged, intercepted, or even leaked later.Deepfake scams are now real-time and multilingualAI-powered impersonation is getting more advanced every month. Criminals can now fake voices and faces convincingly in real time. In early 2024, a British engineering firm lost 20 million pounds after scammers used live deepfake video to impersonate company executives during a Zoom call. The attackers looked and sounded like trusted leaders and convinced an employee to transfer funds.Real-time video manipulation tools are now being sold on criminal forums. These tools can swap faces and mimic speech during video calls in multiple languages, making it easier for attackers to run scams across borders. Illustration of a person video conferencing on their laptop. (Kurt "CyberGuy" Knutsson)AI is running phishing and scam operations at scaleSocial engineering has always been a part of cybercrime. Now, AI is automating it. Attackers no longer need to speak a victim’s language, stay online constantly, or manually write convincing messages.Tools like GoMailPro use ChatGPT to create phishing and spam emails with perfect grammar and native-sounding tone. These messages are far more convincing than the sloppy scams of the past. GoMailPro can generate thousands of unique emails, each slightly different in language and urgency, which helps them slip past spam filters. It is actively marketed on underground forums for around $500 per month, making it widely accessible to bad actors.Another tool, the X137 Telegram Console, leverages Gemini AI to monitor and respond to chat messages automatically. It can impersonate customer support agents or known contacts, carrying out real-time conversations with multiple targets at once. The replies are uncensored, fast, and customized based on the victim’s responses, giving the illusion of a human behind the screen.AI is also powering large-scale sextortion scams. These are emails that falsely claim to have compromising videos or photos and demand payment to prevent them from being shared. Instead of using the same message repeatedly, scammers now rely on AI to rewrite the threat in dozens of ways. For example, a basic line like "Time is running out" might be reworded as "The hourglass is nearly empty for you," making the message feel more personal and urgent while also avoiding detection.By removing the need for language fluency and manual effort, these AI tools allow attackers to scale their phishing operations dramatically. Even inexperienced scammers can now run large, personalized campaigns with almost no effort. Stolen AI accounts are sold on the dark webWith AI tools becoming more popular, criminals are now targeting the accounts that use them. Hackers are stealing ChatGPT logins, OpenAI API keys, and other platform credentials to bypass usage limits and hide their identity. These accounts are often stolen through malware, phishing, or credential stuffing attacks. The stolen credentials are then sold in bulk on Telegram channels and underground forums. Some attackers are even using tools that can bypass multi-factor authentication and session-based security protections. These stolen accounts allow criminals to access powerful AI tools and use them for phishing, malware generation, and scam automation. Illustration of a person signing into their laptop. (Kurt "CyberGuy" Knutsson)Jailbreaking AI is now a common tacticCriminals are finding ways to bypass the safety rules built into AI models. On the dark web, attackers share techniques for jailbreaking AI so it will respond to requests that would normally be blocked. Common methods include:Telling the AI to pretend it is a fictional character that has no rules or limitationsPhrasing dangerous questions as academic or research-related scenariosAsking for technical instructions using less obvious wording so the request doesn’t get flaggedSome AI models can even be tricked into jailbreaking themselves. Attackers prompt the model to create input that causes it to override its own restrictions. This shows how AI systems can be manipulated in unexpected and dangerous ways.AI-generated malware is entering the mainstreamAI is now being used to build malware, phishing kits, ransomware scripts, and more. Recently, a group called FunkSac was identified as the leading ransomware gang using AI. Its leader admitted that at least 20% of their attacks are powered by AI. FunkSec has also used AI to help launch attacks that flood websites or services with fake traffic, making them crash or go offline. These are known as denial-of-service attacks. The group even created its own AI-powered chatbot to promote its activities and communicate with victims on its public website..Some cybercriminals are even using AI to help with marketing and data analysis after an attack. One tool called Rhadamanthys Stealer 0.7 claimed to use AI for "text recognition" to sound more advanced, but researchers later found it was using older technology instead. This shows how attackers use AI buzzwords to make their tools seem more advanced or trustworthy to buyers.Other tools are more advanced. One example is DarkGPT, a chatbot built specifically to sort through huge databases of stolen information. After a successful attack, scammers often end up with logs full of usernames, passwords, and other private details. Instead of sifting through this data manually, they use AI to quickly find valuable accounts they can break into, sell, or use for more targeted attacks like ransomware.Get a free scan to find out if your personal information is already out on the web Poisoned AI models are spreading misinformationSometimes, attackers do not need to hack an AI system. Instead, they trick it by feeding it false or misleading information. This tactic is called AI poisoning, and it can cause the AI to give biased, harmful, or completely inaccurate answers. There are two main ways this happens:Training poisoning: Attackers sneak false or harmful data into the model during developmentRetrieval poisoning: Misleading content online gets planted, which the AI later picks up when generating answersIn 2024, attackers uploaded 100 tampered AI models to the open-source platform Hugging Face. These poisoned models looked like helpful tools, but when people used them, they could spread false information or output malicious code.A large-scale example came from a Russian propaganda group called Pravda, which published more than 3.6 million fake articles online. These articles were designed to trick AI chatbots into repeating their messages. In tests, researchers found that major AI systems echoed these false claims about 33% of the time. Illustration of a hacker at work (Kurt "CyberGuy" Knutsson)How to protect yourself from AI-driven cyber threatsAI-powered cybercrime blends realism, speed, and scale. These scams are not just harder to detect. They are also easier to launch. Here’s how to stay protected:1) Avoid entering sensitive data into public AI tools: Never share passwords, personal details, or confidential business information in any AI chat, even if it seems private. These inputs can sometimes be logged or misused.2) Use strong antivirus software: AI-generated phishing emails and malware can slip past outdated security tools. The best way to safeguard yourself from malicious links that install malware, potentially accessing your private information, is to have strong antivirus software installed on all your devices. This protection can also alert you to phishing emails and ransomware scams, keeping your personal information and digital assets safe. Get my picks for the best 2025 antivirus protection winners for your Windows, Mac, Android & iOS devices.3) Turn on two-factor authentication (2FA): 2FA adds an extra layer of protection to your accounts, including AI platforms. It makes it much harder for attackers to break in using stolen passwords.4) Be extra cautious with unexpected video calls or voice messages: If something feels off, even if the person seems familiar, verify before taking action. Deepfake audio and video can sound and look very real.5) Use a personal data removal service: With AI-powered scams and deepfake attacks on the rise, criminals are increasingly relying on publicly available personal information to craft convincing impersonations or target victims with personalized phishing. By using a reputable personal data removal service, you can reduce your digital footprint on data broker sites and public databases. This makes it much harder for scammers to gather the details they need to convincingly mimic your identity or launch targeted AI-driven attacks.While no service can guarantee the complete removal of your data from the internet, a data removal service is really a smart choice.  They aren’t cheap - and neither is your privacy.  These services do all the work for you by actively monitoring and systematically erasing your personal information from hundreds of websites.  It’s what gives me peace of mind and has proven to be the most effective way to erase your personal data from the internet.  By limiting the information available, you reduce the risk of scammers cross-referencing data from breaches with information they might find on the dark web, making it harder for them to target you. Check out my top picks for data removal services here. 6) Consider identity theft protection: If your data is leaked through a scam, early detection is key. Identity protection services can monitor your information and alert you to suspicious activity. Identity Theft companies can monitor personal information like your Social Security Number (SSN), phone number, and email address, and alert you if it is being sold on the dark web or being used to open an account.  They can also assist you in freezing your bank and credit card accounts to prevent further unauthorized use by criminals. See my tips and best picks on how to protect yourself from identity theft.7) Regularly monitor your financial accounts: AI-generated phishing, malware, and account takeover attacks are now more sophisticated and widespread than ever, as highlighted in the 2025 AI Security Report. By frequently reviewing your bank and credit card statements for suspicious activity, you can catch unauthorized transactions early, often before major damage is done. Quick detection is crucial, especially since stolen credentials and financial information are now being traded and exploited at scale by cybercriminals using AI.8) Use a secure password manager: Stolen AI accounts and credential stuffing attacks are a growing threat, with hackers using automated tools to break into accounts and sell access on the dark web. A secure password manager helps you create and store strong, unique passwords for every account, making it far more difficult for attackers to compromise your logins, even if some of your information is leaked or targeted by AI-driven attacks. Get more details about my best expert-reviewed Password Managers of 2025 here.9) Keep your software updated: AI-generated malware and advanced phishing kits are designed to exploit vulnerabilities in outdated software. To stay ahead of these evolving threats, ensure all your devices, browsers, and applications are updated with the latest security patches. Regular updates close security gaps that AI-powered malware and cybercriminals are actively seeking to exploit. Kurt's key takeawaysCybercriminals are now using AI to power some of the most convincing and scalable attacks we’ve ever seen. From deepfake video calls and AI-generated phishing emails to stolen AI accounts and malware written by chatbots, these scams are becoming harder to detect and easier to launch. Attackers are even poisoning AI models with false information and creating fake tools that look legitimate but are designed to do harm. To stay safe, it’s more important than ever to use strong antivirus protection, enable multi-factor authentication, and avoid sharing sensitive data with AI tools you do not fully trust.Have you noticed AI scams getting more convincing? Let us know your experience or questions by writing us at Cyberguy.com/Contact. Your story could help someone else stay safe.For more of my tech tips & security alerts, subscribe to my free CyberGuy Report Newsletter by heading to Cyberguy.com/NewsletterAsk Kurt a question or let us know what stories you'd like us to coverFollow Kurt on his social channelsAnswers to the most asked CyberGuy questions:New from Kurt:Copyright 2025 CyberGuy.com.  All rights reserved. Kurt "CyberGuy" Knutsson is an award-winning tech journalist who has a deep love of technology, gear and gadgets that make life better with his contributions for Fox News & FOX Business beginning mornings on "FOX & Friends." Got a tech question? Get Kurt’s free CyberGuy Newsletter, share your voice, a story idea or comment at CyberGuy.com.

Cyber threats don't show up one at a time anymore. They're layered, planned, and often stay hidden until it's too late. For cybersecurity teams, the key isn't just reacting to alerts—it's spotting early signs of trouble before they become real threats. This update is designed to deliver clear, accurate insights based on real patterns and changes we can verify. With today's complex systems, we need focused analysis—not noise. What you'll see here isn't just a list of incidents, but a clear look at where control is being gained, lost, or quietly tested. ⚡ Threat of the Week Lumma Stealer, DanaBot Operations Disrupted — A coalition of private sector companies and law enforcement agencies have taken down the infrastructure associated with Lumma Stealer and DanaBot. Charges have also been unsealed against 16 individuals for their alleged involvement in the development and deployment of DanaBot. The malware is equipped to siphon data from victim computers, hijack banking sessions, and steal device information. More uniquely, though, DanaBot has also been used for hacking campaigns that appear to be linked to Russian state-sponsored interests. All of that makes DanaBot a particularly clear example of how commodity malware has been repurposed by Russian state hackers for their own goals. In tandem, about 2,300 domains that acted as the command-and-control (C2) backbone for the Lumma information stealer have been seized, alongside taking down 300 servers and neutralizing 650 domains that were used to launch ransomware attacks. The actions against international cybercrime in the past few days constituted the latest phase of Operation Endgame. Get the Guide ➝ 🔔 Top News Threat Actors Use TikTok Videos to Distribute Stealers — While ClickFix has become a popular social engineering tactic to deliver malware, threat actors have been observed using artificial intelligence (AI)-generated videos uploaded to TikTok to deceive users into running malicious commands on their systems and deploy malware like Vidar and StealC under the guise of activating pirated version of Windows, Microsoft Office, CapCut, and Spotify. "This campaign highlights how attackers are ready to weaponize whichever social media platforms are currently popular to distribute malware," Trend Micro said. APT28 Hackers Target Western Logistics and Tech Firms — Several cybersecurity and intelligence agencies from Australia, Europe, and the United States issued a joint alert warning of a state-sponsored campaign orchestrated by the Russian state-sponsored threat actor APT28 targeting Western logistics entities and technology companies since 2022. "This cyber espionage-oriented campaign targeting logistics entities and technology companies uses a mix of previously disclosed TTPs and is likely connected to these actors' wide scale targeting of IP cameras in Ukraine and bordering NATO nations," the agencies said. The attacks are designed to steal sensitive information and maintain long-term persistence on compromised hosts. Chinese Threat Actors Exploit Ivanti EPMM Flaws — The China-nexus cyber espionage group tracked as UNC5221 has been attributed to the exploitation of a pair of security flaws affecting Ivanti Endpoint Manager Mobile (EPMM) software (CVE-2025-4427 and CVE-2025-4428) to target a wide range of sectors across Europe, North America, and the Asia-Pacific region. The intrusions leverage the vulnerabilities to obtain a reverse shell and drop malicious payloads like KrustyLoader, which is known to deliver the Sliver command-and-control (C2) framework. "UNC5221 demonstrates a deep understanding of EPMM's internal architecture, repurposing legitimate system components for covert data exfiltration," EclecticIQ said. "Given EPMM's role in managing and pushing configurations to enterprise mobile devices, a successful exploitation could allow threat actors to remotely access, manipulate, or compromise thousands of managed devices across an organization." Over 100 Google Chrome Extensions Mimic Popular Tools — An unknown threat actor has been attributed to creating several malicious Chrome Browser extensions since February 2024 that masquerade as seemingly benign utilities such as DeepSeek, Manus, DeBank, FortiVPN, and Site Stats but incorporate covert functionality to exfiltrate data, receive commands, and execute arbitrary code. Links to these browser add-ons are hosted on specially crafted sites to which users are likely redirected to via phishing and social media posts. While the extensions appear to offer the advertised features, they also stealthily facilitate credential and cookie theft, session hijacking, ad injection, malicious redirects, traffic manipulation, and phishing via DOM manipulation. Several of these extensions have been taken down by Google. CISA Warns of SaaS Providers of Attacks Targeting Cloud Environments — The U.S. Cybersecurity and Infrastructure Security Agency (CISA) warned that SaaS companies are under threat from bad actors who are on the prowl for cloud applications with default configurations and elevated permissions. While the agency did not attribute the activity to a specific group, the advisory said enterprise backup platform Commvault is monitoring cyber threat activity targeting applications hosted in their Microsoft Azure cloud environment. "Threat actors may have accessed client secrets for Commvault's (Metallic) Microsoft 365 (M365) backup software-as-a-service (SaaS) solution, hosted in Azure," CISA said. "This provided the threat actors with unauthorized access to Commvault's customers' M365 environments that have application secrets stored by Commvault." GitLab AI Coding Assistant Flaws Could Be Used to Inject Malicious Code — Cybersecurity researchers have discovered an indirect prompt injection flaw in GitLab's artificial intelligence (AI) assistant Duo that could have allowed attackers to steal source code and inject untrusted HTML into its responses, which could then be used to direct victims to malicious websites. The attack could also leak confidential issue data, such as zero-day vulnerability details. All that's required is for the attacker to instruct the chatbot to interact with a merge request (or commit, issue, or source code) by taking advantage of the fact that GitLab Duo has extensive access to the platform. "By embedding hidden instructions in seemingly harmless project content, we were able to manipulate Duo's behavior, exfiltrate private source code, and demonstrate how AI responses can be leveraged for unintended and harmful outcomes," Legit Security said. One variation of the attack involved hiding a malicious instruction in an otherwise legitimate piece of source code, while another exploited Duo's parsing of markdown responses in real-time asynchronously. An attacker could leverage this behavior – that Duo begins rendering the output line by line rather than waiting until the entire response is generated and sending it all at once – to introduce malicious HTML code that can access sensitive data and exfiltrate the information to a remote server. The issues have been patched by GitLab following responsible disclosure. ‎️‍🔥 Trending CVEs Software vulnerabilities remain one of the simplest—and most effective—entry points for attackers. Each week uncovers new flaws, and even small delays in patching can escalate into serious security incidents. Staying ahead means acting fast. Below is this week's list of high-risk vulnerabilities that demand attention. Review them carefully, apply updates without delay, and close the doors before they're forced open. This week's list includes — CVE-2025-34025, CVE-2025-34026, CVE-2025-34027 (Versa Concerto), CVE-2025-30911 (RomethemeKit For Elementor WordPress plugin), CVE-2024-57273, CVE-2024-54780, and CVE-2024-54779 (pfSense), CVE-2025-41229 (VMware Cloud Foundation), CVE-2025-4322 (Motors WordPress theme), CVE-2025-47934 (OpenPGP.js), CVE-2025-30193 (PowerDNS), CVE-2025-0993 (GitLab), CVE-2025-36535 (AutomationDirect MB-Gateway), CVE-2025-47949 (Samlify), CVE-2025-40775 (BIND DNS), CVE-2025-20152 (Cisco Identity Services Engine), CVE-2025-4123 (Grafana), CVE-2025-5063 (Google Chrome), CVE-2025-37899 (Linux Kernel), CVE-2025-26817 (Netwrix Password Secure), CVE-2025-47947 (ModSecurity), CVE-2025-3078, CVE-2025-3079 (Canon Printers), and CVE-2025-4978 (NETGEAR). 📰 Around the Cyber World Sandworm Drops New Wiper in Ukraine — The Russia-aligned Sandworm group intensified destructive operations against Ukrainian energy companies, deploying a new wiper named ZEROLOT. "The infamous Sandworm group concentrated heavily on compromising Ukrainian energy infrastructure. In recent cases, it deployed the ZEROLOT wiper in Ukraine. For this, the attackers abused Active Directory Group Policy in the affected organizations," ESET Director of Threat Research, Jean-Ian Boutin, said. Another Russian hacking group, Gamaredon, remained the most prolific actor targeting the East European nation, enhancing malware obfuscation and introducing PteroBox, a file stealer leveraging Dropbox. Signal Says No to Recall — Signal has released a new version of its messaging app for Windows that, by default, blocks the ability of Windows to use Recall to periodically take screenshots of the app. "Although Microsoft made several adjustments over the past twelve months in response to critical feedback, the revamped version of Recall still places any content that's displayed within privacy-preserving apps like Signal at risk," Signal said. "As a result, we are enabling an extra layer of protection by default on Windows 11 in order to help maintain the security of Signal Desktop on that platform even though it introduces some usability trade-offs. Microsoft has simply given us no other option." Microsoft began officially rolling out Recall last month. Russia Introduces New Law to Track Foreigners Using Their Smartphones — The Russian government has introduced a new law that makes installing a tracking app mandatory for all foreign nationals in the Moscow region. This includes gathering their real-time locations, fingerprint, face photograph, and residential information. "The adopted mechanism will allow, using modern technologies, to strengthen control in the field of migration and will also contribute to reducing the number of violations and crimes in this area," Vyacheslav Volodin, chairman of the State Duma, said. "If migrants change their actual place of residence, they will be required to inform the Ministry of Internal Affairs (MVD) within three working days." A proposed four-year trial period begins on September 1, 2025, and runs until September 1, 2029. Dutch Government Passes Law to Criminalize Cyber Espionage — The Dutch government has approved a law criminalizing a wide range of espionage activities, including digital espionage, in an effort to protect national security, critical infrastructure, and high-quality technologies. Under the amended law, leaking sensitive information that is not classified as a state secret or engaging in activities on behalf of a foreign government that harm Dutch interests can also result in criminal charges. "Foreign governments are also interested in non-state-secret, sensitive information about a particular economic sector or about political decision-making," the government said. "Such information can be used to influence political processes, weaken the Dutch economy or play allies against each other. Espionage can also involve actions other than sharing information." Microsoft Announces Availability of Quantum-Resistant Algorithms to SymCrypt — Microsoft has revealed that it's making post-quantum cryptography (PQC) capabilities, including ML-KEM and ML-DSA, available for Windows Insiders, Canary Channel Build 27852 and higher, and Linux, SymCrypt-OpenSSL version 1.9.0. "This advancement will enable customers to commence their exploration and experimentation of PQC within their operational environments," Microsoft said. "By obtaining early access to PQC capabilities, organizations can proactively assess the compatibility, performance, and integration of these novel algorithms alongside their existing security infrastructure." New Malware DOUBLELOADER Uses ALCATRAZ for Obfuscation — The open-source obfuscator ALCATRAZ has been seen within a new generic loader dubbed DOUBLELOADER, which has been deployed alongside Rhadamanthys Stealer infections starting December 2024. The malware collects host information, requests an updated version of itself, and starts beaconing to a hardcoded IP address (185.147.125[.]81) stored within the binary. "Obfuscators such as ALCATRAZ end up increasing the complexity when triaging malware," Elastic Security Labs said. "Its main goal is to hinder binary analysis tools and increase the time of the reverse engineering process through different techniques; such as hiding the control flow or making decompilation hard to follow." New Formjacking Campaign Targets WooCommerce Sites — Cybersecurity researchers have detected a sophisticated formjacking campaign targeting WooCommerce sites. The malware, per Wordfence, injects a fake but professional-looking payment form into legitimate checkout processes and exfiltrates sensitive customer data to an external server. Further analysis has revealed that the infection likely originated from a compromised WordPress admin account, which was used to inject malicious JavaScript via a Simple Custom CSS and JS plugin (or something similar) that allows administrators to add custom code. "Unlike traditional card skimmers that simply overlay existing forms, this variant carefully integrates with the WooCommerce site's design and payment workflow, making it particularly difficult for site owners and users to detect," the WordPress security company said. "The malware author repurposed the browser's localStorage mechanism – typically used by websites to remember user preferences – to silently store stolen data and maintain access even after page reloads or when navigating away from the checkout page." E.U. Sanctions Stark Industries — The European Union (E.U.) has announced sanctions against 21 individuals and six entities in Russia over its "destabilising actions" in the region. One of the sanctioned entities is Stark Industries, a bulletproof hosting provider that has been accused of acting as "enablers of various Russian state-sponsored and affiliated actors to conduct destabilising activities including, information manipulation interference and cyber attacks against the Union and third countries." The sanctions also target its CEO Iurie Neculiti and owner Ivan Neculiti. Stark Industries was previously spotlighted by independent cybersecurity journalist Brian Krebs, detailing its use in DDoS attacks in Ukraine and across Europe. In August 2024, Team Cymru said it discovered 25 Stark-assigned IP addresses used to host domains associated with FIN7 activities and that it had been working with Stark Industries for several months to identify and reduce abuse of their systems. The sanctions have also targeted Kremlin-backed manufacturers of drones and radio communication equipment used by the Russian military, as well as those involved in GPS signal jamming in Baltic states and disrupting civil aviation. The Mask APT Unmasked as Tied to the Spanish Government — The mysterious threat actor known as The Mask (aka Careto) has been identified as run by the Spanish government, according to a report published by TechCrunch, citing people who worked at Kaspersky at the time and had knowledge of the investigation. The Russian cybersecurity company first exposed the hacking group in 2014, linking it to highly sophisticated attacks since at least 2007 targeting high-profile organizations, such as governments, diplomatic entities, and research institutions. A majority of the group's attacks have targeted Cuba, followed by hundreds of victims in Brazil, Morocco, Spain, and Gibraltar. While Kaspersky has not publicly attributed it to a specific country, the latest revelation makes The Mask one of the few Western government hacking groups that has ever been discussed in public. This includes the Equation Group, the Lamberts (the U.S.), and Animal Farm (France). Social Engineering Scams Target Coinbase Users — Earlier this month, cryptocurrency exchange Coinbase revealed that it was the victim of a malicious attack perpetrated by unknown threat actors to breach its systems by bribing customer support agents in India and siphon funds from nearly 70,000 customers. According to Blockchain security firm SlowMist, Coinbase users have been the target of social engineering scams since the start of the year, bombarding with SMS messages claiming to be fake withdrawal requests and seeking their confirmation as part of a "sustained and organized scam campaign." The goal is to induce a false sense of urgency and trick them into calling a number, eventually convincing them to transfer the funds to a secure wallet with a seed phrase pre-generated by the attackers and ultimately drain the assets. It's assessed that the activities are primarily carried out by two groups: low-level skid attackers from the Com community and organized cybercrime groups based in India. "Using spoofed PBX phone systems, scammers impersonate Coinbase support and claim there's been 'unauthorized access' or 'suspicious withdrawals' on the user's account," SlowMist said. "They create a sense of urgency, then follow up with phishing emails or texts containing fake ticket numbers or 'recovery links.'" Delta Can Sue CrowdStrike Over July 2024 Mega Outage — Delta Air Lines, which had its systems crippled and almost 7,000 flights canceled in the wake of a massive outage caused by a faulty update issued by CrowdStrike in mid-July 2024, has been given the green light to pursue to its lawsuit against the cybersecurity company. A judge in the U.S. state of Georgia stating Delta can try to prove that CrowdStrike was grossly negligent by pushing a defective update to its Falcon software to customers. The update crashed 8.5 million Windows devices across the world. Crowdstrike previously claimed that the airline had rejected technical support offers both from itself and Microsoft. In a statement shared with Reuters, lawyers representing CrowdStrike said they were "confident the judge will find Delta's case has no merit, or will limit damages to the 'single-digit millions of dollars' under Georgia law." The development comes months after MGM Resorts International agreed to pay $45 million to settle multiple class-action lawsuits related to a data breach in 2019 and a ransomware attack the company experienced in 2023. Storm-1516 Uses AI-Generated Media to Spread Disinformation — The Russian influence operation known as Storm-1516 (aka CopyCop) sought to spread narratives that undermined the European support for Ukraine by amplifying fabricated stories on X about European leaders using drugs while traveling by train to Kyiv for peace talks. One of the posts was subsequently shared by Russian state media and Maria Zakharova, a senior official in Russia's foreign ministry, as part of what has been described as a coordinated disinformation campaign by EclecticIQ. The activity is also notable for the use of synthetic content depicting French President Emmanuel Macron, U.K. Labour Party leader Keir Starmer, and German chancellor Friedrich Merz of drug possession during their return from Ukraine. "By attacking the reputation of these leaders, the campaign likely aimed to turn their own voters against them, using influence operations (IO) to reduce public support for Ukraine by discrediting the politicians who back it," the Dutch threat intelligence firm said. Turkish Users Targeted by DBatLoader — AhnLab has disclosed details of a malware campaign that's distributing a malware loader called DBatLoader (aka ModiLoader) via banking-themed banking emails, which then acts as a conduit to deliver SnakeKeylogger, an information stealer developed in .NET. "The DBatLoader malware distributed through phishing emails has the cunning behavior of exploiting normal processes (easinvoker.exe, loader.exe) through techniques such as DLL side-loading and injection for most of its behaviors, and it also utilizes normal processes (cmd.exe, powershell.exe, esentutl.exe, extrac32.exe) for behaviors such as file copying and changing policies," the company said. SEC SIM-Swapper Sentenced to 14 Months for SEC X Account Hack — A 26-year-old Alabama man, Eric Council Jr., has been sentenced to 14 months in prison and three years of supervised release for using SIM swapping attacks to breach the U.S. Securities and Exchange Commission's (SEC) official X account in January 2024 and falsely announced that the SEC approved Bitcoin (BTC) Exchange Traded Funds (ETFs). Council Jr. (aka Ronin, Agiantschnauzer, and @EasyMunny) was arrested in October 2024 and pleaded guilty to the crime earlier this February. He has also been ordered to forfeit $50,000. According to court documents, Council used his personal computer to search incriminating phrases such as "SECGOV hack," "telegram sim swap," "how can I know for sure if I am being investigated by the FBI," "What are the signs that you are under investigation by law enforcement or the FBI even if you have not been contacted by them," "what are some signs that the FBI is after you," "Verizon store list," "federal identity theft statute," and "how long does it take to delete telegram account." FBI Warns of Malicious Campaign Impersonating Government Officials — The U.S. Federal Bureau of Investigation (FBI) is warning of a new campaign that involves malicious actors impersonating senior U.S. federal or state government officials and their contacts to target individuals since April 2025. "The malicious actors have sent text messages and AI-generated voice messages — techniques known as smishing and vishing, respectively — that claim to come from a senior US official in an effort to establish rapport before gaining access to personal accounts," the FBI said. "One way the actors gain such access is by sending targeted individuals a malicious link under the guise of transitioning to a separate messaging platform." From there, the actor may present malware or introduce hyperlinks that lead intended targets to an actor-controlled site that steals login information. DICOM Flaw Enables Attackers to Embed Malicious Code Within Medical Image Files — Praetorian has released a proof-of-concept (PoC) for a high-severity security flaw in Digital Imaging and Communications in Medicine (DICOM), predominant file format for medical images, that enables attackers to embed malicious code within legitimate medical image files. CVE-2019-11687 (CVSS score: 7.8), originally disclosed in 2019 by Markel Picado Ortiz, stems from a design decision that allows arbitrary content at the start of the file, otherwise called the Preamble, which enables the creation of malicious polyglots. Codenamed ELFDICOM, the PoC extends the attack surface to Linux environments, making it a much more potent threat. As mitigations, it's advised to implement a DICOM preamble whitelist. "DICOM's file structure inherently allows arbitrary bytes at the beginning of the file, where Linux and most operating systems will look for magic bytes," Praetorian researcher Ryan Hennessee said. "[The whitelist] would check a DICOM file's preamble before it is imported into the system. This would allow known good patterns, such as 'TIFF' magic bytes, or '\x00' null bytes, while files with the ELF magic bytes would be blocked." Cookie-Bite Attack Uses Chrome Extension to Steal Session Tokens — Cybersecurity researchers have demonstrated a new attack technique called Cookie-Bite that employs custom-made malicious browser extensions to steal "ESTAUTH" and "ESTSAUTHPERSISTNT" cookies in Microsoft Azure Entra ID and bypass multi-factor authentication (MFA). The attack has multiple moving parts to it: A custom Chrome extension that monitors authentication events and captures cookies; a PowerShell script that automates the extension deployment and ensures persistence; an exfiltration mechanism to send the cookies to a remote collection point; and a complementary extension to inject the captured cookies into the attacker's browser. "Threat actors often use infostealers to extract authentication tokens directly from a victim's machine or buy them directly through darkness markets, allowing adversaries to hijack active cloud sessions without triggering MFA," Varonis said. "By injecting these cookies while mimicking the victim's OS, browser, and network, attackers can evade Conditional Access Policies (CAPs) and maintain persistent access." Authentication cookies can also be stolen using adversary-in-the-middle (AitM) phishing kits in real-time, or using rogue browser extensions that request excessive permissions to interact with web sessions, modify page content, and extract stored authentication data. Once installed, the extension can access the browser's storage API, intercept network requests, or inject malicious JavaScript into active sessions to harvest real-time session cookies. "By leveraging stolen session cookies, an adversary can bypass authentication mechanisms, gaining seamless entry into cloud environments without requiring user credentials," Varonis said. "Beyond initial access, session hijacking can facilitate lateral movement across the tenant, allowing attackers to explore additional resources, access sensitive data, and escalate privileges by abusing existing permissions or misconfigured roles." 🎥 Cybersecurity Webinars Non-Human Identities: The AI Backdoor You're Not Watching → AI agents rely on Non-Human Identities (like service accounts and API keys) to function—but these are often left untracked and unsecured. As attackers shift focus to this hidden layer, the risk is growing fast. In this session, you'll learn how to find, secure, and monitor these identities before they're exploited. Join the webinar to understand the real risks behind AI adoption—and how to stay ahead. Inside the LOTS Playbook: How Hackers Stay Undetected → Attackers are using trusted sites to stay hidden. In this webinar, Zscaler experts share how they detect these stealthy LOTS attacks using insights from the world's largest security cloud. Join to learn how to spot hidden threats and improve your defense. 🔧 Cybersecurity Tools ScriptSentry → It is a free tool that scans your environment for dangerous logon script misconfigurations—like plaintext credentials, insecure file/share permissions, and references to non-existent servers. These overlooked issues can enable lateral movement, privilege escalation, or even credential theft. ScriptSentry helps you quickly identify and fix them across large Active Directory environments. Aftermath → It is a Swift-based, open-source tool for macOS incident response. It collects forensic data—like logs, browser activity, and process info—from compromised systems, then analyzes it to build timelines and track infection paths. Deploy via MDM or run manually. Fast, lightweight, and ideal for post-incident investigation. AI Red Teaming Playground Labs → It is an open-source training suite with hands-on challenges designed to teach security professionals how to red team AI systems. Originally developed for Black Hat USA 2024, the labs cover prompt injections, safety bypasses, indirect attacks, and Responsible AI failures. Built on Chat Copilot and deployable via Docker, it's a practical resource for testing and understanding real-world AI vulnerabilities. 🔒 Tip of the Week Review and Revoke Old OAuth App Permissions — They're Silent Backdoor → You've likely logged into apps using "Continue with Google," "Sign in with Microsoft," or GitHub/Twitter/Facebook logins. That's OAuth. But did you know many of those apps still have access to your data long after you stop using them? Why it matters: Even if you delete the app or forget it existed, it might still have ongoing access to your calendar, email, cloud files, or contact list — no password needed. If that third-party gets breached, your data is at risk. What to do: Go through your connected apps here: Google: myaccount.google.com/permissions Microsoft: account.live.com/consent/Manage GitHub: github.com/settings/applications Facebook: facebook.com/settings?tab=applications Revoke anything you don't actively use. It's a fast, silent cleanup — and it closes doors you didn't know were open. Conclusion Looking ahead, it's not just about tracking threats—it's about understanding what they reveal. Every tactic used, every system tested, points to deeper issues in how trust, access, and visibility are managed. As attackers adapt quickly, defenders need sharper awareness and faster response loops. The takeaways from this week aren't just technical—they speak to how teams prioritize risk, design safeguards, and make choices under pressure. Use these insights not just to react, but to rethink what "secure" really needs to mean in today's environment. Found this article interesting? 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May 26, 2025Ravie LakshmananCybersecurity / Cryptocurrency As many as 60 malicious npm packages have been discovered in the package registry with malicious functionality to harvest hostnames, IP addresses, DNS servers, and user directories to a Discord-controlled endpoint. The packages, published under three different accounts, come with an install‑time script that's triggered during npm install, Socket security researcher Kirill Boychenko said in a report published last week. The libraries have been collectively downloaded over 3,000 times. "The script targets Windows, macOS, or Linux systems, and includes basic sandbox‑evasion checks, making every infected workstation or continuous‑integration node a potential source of valuable reconnaissance," the software supply chain security firm said. The names of the three accounts, each of which published 20 packages within an 11-day time period, are listed below. The accounts no longer exist on npm - bbbb335656 cdsfdfafd1232436437, and sdsds656565 The malicious code, per Socket, is explicitly designed to fingerprint every machine that installs the package, while also aborting the execution if it detects that it's running in a virtualized environment associated with Amazon, Google, and others. The harvested information, which includes host details, system DNS servers, network interface card (NIC) information, and internal and external IP addresses, is then transmitted to a Discord webhook. "By harvesting internal and external IP addresses, DNS servers, usernames, and project paths, it enables a threat actor to chart the network and identify high‑value targets for future campaigns," Boychenko said. The disclosure follows another set of eight npm packages that masquerade as helper libraries for widely-used JavaScript frameworks including React, Vue.js, Vite, Node.js, and the open-source Quill Editor, but deploy destructive payloads once installed. They have been downloaded more than 6,200 times and are still available for download from the repository - vite-plugin-vue-extend quill-image-downloader js-hood js-bomb vue-plugin-bomb vite-plugin-bomb vite-plugin-bomb-extend, and vite-plugin-react-extend "Masquerading as legitimate plugins and utilities while secretly containing destructive payloads designed to corrupt data, delete critical files, and crash systems, these packages remained undetected," Socket security researcher Kush Pandya said. Some of the identified packages have been found to execute automatically once developers invoke them in their projects, enabling recursive deletion of files related to Vue.js, React, and Vite. Others are designed to either corrupt fundamental JavaScript methods or tamper with browser storage mechanisms like localStorage, sessionStorage, and cookies. Another package of note is js-bomb, which goes beyond deleting Vue.js framework files by also initiating a system shutdown based on the current time of the execution. The activity has been traced to a threat actor named xuxingfeng, who has also published five legitimate, non-malicious packages that work as intended. Some of the rogue packages were published in 2023. "This dual approach of releasing both harmful and helpful packages creates a facade of legitimacy that makes malicious packages more likely to be trusted and installed," Pandya said. The findings also follow the discovery of a novel attack campaign that combines traditional email phishing with JavaScript code that's part of a malicious npm package disguised as a benign open-source library. "Once communication was established, the package loaded and delivered a second-stage script that customized phishing links using the victim's email address, leading them to a fake Office 365 login page designed to steal their credentials," Fortra researcher Israel Cerda said. The starting point of the attack is a phishing email containing a malicious .HTM file, which includes encrypted JavaScript code hosted on jsDelivr and associated with a now-removed npm package named citiycar8. Once installed, the JavaScript payload embedded within the package is used to initiate a URL redirection chain that eventually leads the user to a bogus landing page designed to capture their credentials. "This phishing attack demonstrates a high level of sophistication, with threat actors linking technologies such as AES encryption, npm packages delivered through a CDN, and multiple redirections to mask their malicious intentions," Cerda said. "The attack not only illustrates the creative ways that attackers attempt to evade detection but also highlights the importance of vigilance in the ever-evolving landscape of cybersecurity threats." The abuse of open-source repositories for malware distribution has become a tried-and-tested approach for conducting supply chain attacks at scale. In recent weeks, malicious data-stealing extensions have also been uncovered in Microsoft's Visual Studio Code (VS Code) Marketplace that are engineered to siphon cryptocurrency wallet credentials by targeting Solidity developers on Windows. The activity has been attributed by Datadog Security Research to a threat actor it tracks as MUT-9332. The names of the extensions are as follows - solaibot among-eth, and blankebesxstnion "The extensions disguise themselves as legitimate, concealing harmful code within genuine features, and use command and control domains that appear relevant to Solidity and that would not typically be flagged as malicious," Datadog researchers said. "All three extensions employ complex infection chains that involve multiple stages of obfuscated malware, including one that uses a payload hidden inside an image file hosted on the Internet Archive." Specifically, the extensions were advertised as offering syntax scanning and vulnerability detection for Solidity developers. While they offer genuine functionality, the extensions are also designed to deliver malicious payloads that steal cryptocurrency wallet credentials from victim Windows systems. The three extensions have since been taken down. The end goal of the VS Code extension is to slip a malicious Chromium-based browser extension that's capable of plundering Ethereum wallets and leaking them to a command-and-control (C2) endpoint. It's also equipped to install a separate executable that disables Windows Defender scanning, scans application data directories for Discord, Chromium-based browsers, cryptocurrency wallets, and Electron applications, and retrieves and executes an additional payload from a remote server. MUT-9332 is also assessed to be behind a recently disclosed campaign that involved the use of 10 malicious VS Code extensions to install an XMRig cryptominer by passing off as coding or artificial intelligence (AI) tools. "This campaign demonstrates the surprising and creative lengths to which MUT-9332 is willing to go when it comes to concealing their malicious intentions," Datadog said. "These payload updates suggest that this campaign will likely continue, and the detection and removal of this first batch of malicious VS Code extensions may prompt MUT-9332 to change tactics in subsequent ones." Found this article interesting? Follow us on Twitter  and LinkedIn to read more exclusive content we post. SHARE    

Hard as it is to believe, there was a time when using any personal technology at work was such a radical concept that most people wouldn’t even consider it an option. IT departments went to great lengths to prevent workers from using their own devices, computers, apps/subscriptions, email, and cloud services. The release of the iPhone in 2007 began to change that. Suddenly people were discovering that the smartphone they bought for their personal use could make them more efficient and productive at work as well. But it was Apple’s launch of its mobile device management framework in 2010 that truly created the bring your own device movement. MDM meant that users could bring their personal devices to work, and IT departments could secure those devices as needed. Almost instantly, BYOD was something that companies began to support in industries across the board. Fifteen years later, BYOD is fully mainstream, and a majority of businesses actively support it. But advances in technology, changing user expectations, and the fallout from Covid’s remote work mandates (and subsequent return to office mandates) have shifted the landscape, sometimes without being overtly visible. With that in mind, I decided to reexamine the assumptions and realities of BYOD and see what has and hasn’t changed in the past decade and a half. BYOD is everywhere but device management isn’t The exact numbers on BYOD adoption vary depending on the source you look to and how it’s being measured. A 2022 paper from HPE claims that 90% of employees use a mix of work and personal devices on the job, while Cybersecurity Insiders says that 82% of organizations have a BYOD program. However you look at it, BYOD is now massively entrenched in our work culture and extends beyond just employees and managers. According to data from Samsung (cited by JumpCloud), 61% of organizations support BYOD for non-employees including contractors, partners, and suppliers to varying degrees. But overtly or tacitly accepting BYOD doesn’t mean that companies actively manage BYOD devices. Cybersecurity Insiders data (also via JumpCloud) also indicates that as many as 70% of BYOD devices used in the workplace aren’t managed — a number that may seem shocking, but that figure includes personal devices used by non-employees such as contractors. About those cost savings… In the early days, there was an assumption that BYOD would lower hardware and service costs, but that wasn’t certain. Today there’s data. In the early 2010s, Cisco estimated a $900+ annual savings per employee, though more recent data from Samsung (cited by JumpCloud) pegs the savings as significantly lower at $341. Despite that disparity, it’s obvious that there are savings to be had, and with significantly climbing smartphone prices, those savings are is poised to grow rather than shrink. Of course, the cost of managing devices needs to be factored in. That cost can vary widely depending on the vendor, specific products, and adopted features, but some MDM vendors charge as little as $1 per user per month (not including staff resources). The cost of providing employees company-purchased apps is also worth noting, though that falls more in line with traditional software procurement. Productivity gains are real, but so are distractions The data is clear that there can be significant gains in productivity attached to BYOD. Samsung estimates that workers using their own devices can gain about an hour of productive worktime per day and Cybersecurity Insiders says that 68% of businesses see some degree of productivity increases. Although the gains are significant, personal devices can also distract workers more than company-owned devices, with personal notifications, social media accounts, news, and games being the major time-sink culprits. This has the potential to be a real issue, as these apps can become addictive and their use compulsive. Tools of the trade When I think back to the first five to ten years after Apple introduced MDM, it reminds me of the later stages of the birth of the solar system, with dozens of companies offering discrete tools that solved part of the mobility and BYOD puzzle, many colliding into each other or being flung out of existence. Some focused on just supporting the MDM server spec sheet, others on cloud storage, securing and managing access to corporate content, corporate app purchasing and management, secure connectivity, user and identity management, Office alternatives (Microsoft waited nearly five years releasing an iOS version of Office), and more. Along the way, major enterprise vendors began dominating the market, some by acquisition and others by building out existing capabilities, although there were also businesses that came out of mergers of some of the new players as well. As the market matured, it became easy to pick a single vendor to provide all enterprise mobility and BYOD needs rather than relying on multiple companies focusing on one particular requirement. Multiplatform support has morphed into something very different The iPhone was the clear early standard for supporting personal devices at work, in part because the hardware, operating system, and MDM mechanics were all created by a single vendor. Going multiplatform was typically assumed to mean iOS and Android — and Android was a fragmented mess of different hardware makers with sometimes widely varying devices and customized Android variants (built to spec by the manufacturers and the demands of wireless carriers) that resulted in no coherent OS update strategy. The gap in management capabilities has narrowed significantly since then, with Google taking a much more active role in courting and supporting enterprise customers and providing a clear and coherent enterprise strategy across a wide swath of major Android phone makers and other vendors. But that isn’t the only massive shift in what it means to be multiplatform. Today the personal devices used in the workplace (and able to be managed using MDM) include non-phone entries including Macs, Apple TVs, Chromebooks, and Windows PCs — with Macs and PCs making up a significant number of BYOD devices. Most MDM suites support this full range of devices to one degree or another, but support costs can rise as more and more platforms (and thus complexity) are implemented — and those costs vary by platform, with general agreement that Apple devices provide the greatest savings when it comes to technical support. How Covid changed the BYOD equation I’m pretty sure that in 2010, not one person on the planet was predicting a global pandemic that would lead to the vast majority of knowledge workers working from home within a decade. Yet, as we all remember, that’s exactly what happened. The need to work from home encouraged broader adoption of personal devices as well as ancillary technologies ranging from peripherals/accessories to connectivity. Despite a litany of return-to-office mandates in recent years, remote work is here to stay, whether that’s full-time, hybrid, or just working outside traditional office hours or location. Samsung notes that 61% of businesses expect employees to work remotely to some degree, while Robert Half reports that only 61% of new job postings in 2024 had full in-office requirements. And data from WFH Research shows that at the start of 2025, employees are working remotely 28% of the time. Passing support to new generations One challenge for BYOD has always been user support and education. With two generations of digital natives now comprsing more than half the workforce, support and education needs have changed. Both millennials and Gen Z have grown up with the internet and mobile devices, which makes them more comfortable making technology decisions and troubleshooting problems than baby boomers and Gen X. This doesn’t mean that they don’t need tech support, but they do tend to need less hand-holding and don’t instinctively reach for the phone to access that support. Thus, there’s an ongoing shift to self-support resources and other, less time-intensive, models with text chat being the most common — be it with a person or a bot. They also have different expectations in areas like privacy, processes and policies, and work-life balance. Those expectations make it more important for companies to delineate their BYOD and other tech policies as well as to explain the rationale for them. This means that user education remains important, particularly in a rapidly changing landscape. It also means that policies should be communicated in more concise and easily digestible forms than large monolithic pages of legalese. Users actually want to update (and repair or replace) their devices Twenty years ago, the idea of updating workplace technology was typically met with a groan from users who didn’t appreciate downtime or changes in the way things looked and worked. Even as BYOD gained traction, getting users to update their devices wasn’t always easy and required a certain amount of prompting or policing. While resistance to change will never truly die out, most smartphone (and other device) users actively update on their own because of the new features that come with OS updates and new hardware. Upgrades are something to get excited about. BYOD users also tend to be more careful with their devices just because they are their own devices. Likewise, they’re more on point with repairs or replacements and are keen to handle those issues on their own. Security is ever evolving Security has always been (and always will be) a major concern when it comes to BYOD, and the threats will always be evolving. The biggest concerns stem from user behavior, with users losing devices being one big concern. Verizon reports that more than 90% of security incidents involving lost or stolen devices resulted in an unauthorized data breach, and 42% involved the leaking of internal data. Another big concern is users falling prey to malicious actors: falling for phishing schemes, downloading malware, allowing corporate data to be placed in public spaces, or letting others use their devices. Devices themselves can be major targets, with attacks coming from different directions like public Wi-Fi, malicious apps or apps that are not designed to safeguard data properly, OS and network vulnerabilities, and so on. Supporting infrastructure can also be a weak point. These threats are real. Research by JumpCloud indicates that 20% of businesses have seen malware as a result of unmanaged devices, and nearly half aren’t able to tell if unmanaged devices have compromised their security. Cybersecurity Insiders research shows a similar statistic of 22%, while also noting that 22% of BYOD devices have connected to malicious wireless networks. Shadow IT will always exist Shadow IT is a phenomenon that has existed for decades but grew rapidly alongside BYOD, when users began leveraging their personal devices, apps, and services for work without IT’s involvement, knowledge, or consent. Almost every company has some degree of shadow IT, and thus unmanaged devices or other technologies. Organizations need to educate users (even digital natives) about security and keeping their devices safe. They also need to engage users involved in shadow IT and make allies out of them, because shadow IT often stems from unmet technological needs. Then there’s the trust component. Many users remain uncomfortable letting IT manage their devices, because they don’t understand what IT will be able to see on them. This is a user education problem that all companies need to address clearly and unequivocally. Still the same goals Although much has changed about BYOD, the basic goal remains the same: allowing workers to use the devices and other tools they are comfortable with and already own… and are likely to use whether sanctioned to or not.