Wireless jamming attacks are on the rise. Rice University researchers have shown how self-curving radio beams can make a jammer appear to be somewhere it isn't, potentially undermining some anti-jamming defenses. Jamming relies on flooding a wireless receiver with noise that denies service. Some modern receivers identify and block jamming attempts using direction-of-arrival (DoA) estimation technology that pinpoints the jammer's direction and directs an array null that blocks signals emanating in the jammer’s direction. Were a jammer to transmit a self-curving beam, however, it could fool DoA-based anti-jamming defenses by appearing to come from somewhere else entirely, and that's exactly what the Rice researchers demonstrated. Rice electrical and computer engineering professor Edward Knightly and doctoral student Caroline Spindel presented a paper [PDF] last month in which they demonstrated a curving-beam jamming attack that caused "catastrophic bit-error-rate degradation" while also "fool[ing] the receiver's DoA estimator," preventing conventional DoA-based defenses from stopping the interference. Knightly and Spindel have done prior research developing wireless technology that could bend beams around objects to increase signal strength - particularly useful for short-range millimeter wave signals - and found that the same technology could be used to deploy jammers that are far harder to locate. Spindel gave the perfect analogy in a recent Rice press release about the research for understanding how curved beams confuse DoA estimators by considering a soccer ball kick to the head. “Imagine being hit on the right side of your head by a soccer ball - you would naturally look to the right,” Spindel said. “If the ball actually curved through the air, like a David Beckham free kick, then it was kicked from somewhere else entirely.” Were Sir David to keep moving and kicking curveballs at your head you’d probably spot him eventually, but it might take a minute, and a few more smacks, to stop him. A signal jammer at radio-wave distances will probably be far harder to spot, and it won’t even have to move: Knightly and Spindel were able to create the illusion that the jammer was mobile by modulating the beam parameters from a stationary position, making it even more difficult to locate the jamming signal and negating the point of blindly searching for the best spot to point an array null. Conventional recovery methods used to block jamming completely failed in laboratory tests, Spindel said. “This is the first demonstration of a jammer that cannot be reliably localized and the first time self-curving wireless beams have been used as an attack,” Knightly added. The pair sees their research not just as a way to point out a serious threat to wireless signals - GPS jamming of aircraft is on the rise, for example - but also something that can inform the direction of future wireless technologies as we move toward the 6G era. Until then, however, there’s the potential for even more devastating jamming attacks to come. ®
Four people suing Elon Musk's AI firm under pseudonyms due to the risks of being identified may face a difficult choice: Reveal your real names, or drop the lawsuit.
UPDATED Yet another aggrieved bug hunter has leaked a vulnerability affecting a Microsoft product after becoming disillusioned with the way the company handles security reports. Ammar Askar dropped a proof of concept (PoC) exploit for a Visual Studio Code (VS Code) flaw within just an hour of disclosing it to “an old contact” at the open source platform, according to his account of things. The vulnerability he exposed involves attackers configuring repos, either of their own making or those they have compromised separately, to push malicious VS Code extensions via its Workspace Recommendations feature, which then steal OAuth tokens they can then use to read/write public and private GitHub repos. It affects anyone who has ever used github.dev, a feature that allows users to open a GitHub repo in a browser-based version of VS Code. Askar said that the feature is enabled by github.com passing an OAuth token over to github.dev and, crucially, this token is not limited to the repo from which github.dev was spun up. It means that this token can hand an attacker access to any other repo – public or private – to which the target also has access. The exploit is contingent on an attacker being able to modify a repo’s .vscode/extensions.json file and recommending an attacker-controlled extension for the browser-based VS Code instance. In normal scenarios, a pop-up would appear asking for a user to accept the installation of this extension, potentially tipping them off to foul play. However, because of the way in which the attacker delivers the repo to the target, they already have a Jupyter Notebook file running in the target’s github.dev before the extension is installed. The attacker must initially get the target to open their repo using a github.dev link that points to this ipynb file, which VS Code immediately opens inside a Webview. Inside the Jupyter Notebook is a hidden HTML snippet inside a Markdown cell, which when loaded allows attacker-controlled JavaScript code to run. This code fires a simulated keyboard shortcut, which VS Code bubbles up to the main editor, tricking the system into automatically accepting the malicious extension popup. The attaker-controlled extension is then running with access to the browser environment, and steals the OAuth token, which can be used to read and change any public or private repo. Askar said past negative experiences with Microsoft Security Response Center (MSRC) influenced his decision not to go through the typical responsible disclosure process, publishing the PoC roughly an hour after tipping off his GitHub contact. “To summarize the last time I interacted with MSRC regarding reporting a VSCode bug, it was a horrible experience where they silently fixed the bug I pointed out without any credit,” he wrote. “They also marked it as not having any security impact. As I mentioned in that post, going forward I would be doing full public disclosure for any security bugs I found in VSCode. Taking a look at a recent report by Starlabs on a VSCode XSS bug marked as ineligible and low severity, it doesn’t look like MSRC has gotten any better about VSCode bugs. “I’m sure the VSCode team would have appreciated a longer heads up on this to come up with solutions. There is legitimately a UI/UX balance here that needs to be struck with the security concerns. To those folks, I am sorry, but this is one of the few levers I have to try to influence MSRC and the security posture of VSCode. Finding and fully developing security bugs into proof-of-concepts like this takes time and effort on the part of security researchers that should not be disrespected or taken for granted.” Askar’s approach is reminiscent of a researcher who goes by Nightmare Eclipse, a suspected former Microsoft employee who has attracted a great deal of attention in recent weeks for leaking zero-days without informing Microsoft beforehand. The researcher has so far released six zero-days, three of which were quickly confirmed to be exploited by attackers in the wild. As regards their motivation for launching this attack on Microsoft, Nightmare Eclipse previously alluded to being stabbed in the back and being left homeless after an agreement that was not honored – all very vague. After the sixth zero-day, Microsoft vaguely threatened the researcher with its Digital Crimes Unit, which works closely with law enforcement, before quickly backing down after an outpouring of negative responses. ® Updated to add on June 4: Microsoft has been on touch with a statement: "We value the critical role that the security research community plays in strengthening the security of our products, services, and the broader technology ecosystem. "While independent researchers determine when and how to publish their findings, we remain committed to rapidly assessing reported issues, mobilizing the appropriate engineering and security response resources, and delivering mitigations, guidance, and protections as quickly as possible to help safeguard our customers." A Microsoft spokesperson also told us that the issue that Askar pointed out "has been mitigated and no customer action is required."
Cisco Secure Access extends SSE and identity controls to agentic AI, helping organizations govern agent actions across models, MCP tools, APIs, and web.
Updated: UK banks are set to receive access to OpenAI’s GPT-5.5 Cyber after being excluded from Anthropic’s latest expansion of Project Glasswing. Project Glasswing, and access to the Mythos Preview model, is geared toward ensuring critical infrastructure providers are prepared to handle the threat posed by advanced AI models, once they inevitably make their way into the public domain, and therefore the hands of attackers. However, amid a fourfold expansion of Glasswing’s partners, only JPMorganChase was named among the financial institutions to receive access to Mythos Preview, despite financial services falling under the critical infrastructure umbrella. In light of the news, HSBC, Lloyds Banking Group, and Nationwide will be among the banks to receive access to GPT-5.5 Cyber, the BBC reported, while NatWest and Santander have already been playing with it as part of separate agreements. OpenAI offered nine UK banks access to its Mythos-rival model in total, after they were snubbed from Glasswing. It is not clear if this number also includes the Bank of England, whose governor, Andrew Bailey, has been outspoken about its exclusion from Glasswing. Bailey told Bloomberg TV last week that despite pushing for access so the UK’s financial system is protected, Anthropic has not handed over the keys to Mythos Preview. Liam Salsi, director of architecture at Talion, told The Register he suspects the decision to exclude UK banks was political. Bailey had also previously alluded to suspicions that Anthropic had not yet granted access to Mythos Preview due to processes at play related to the US administration. “The US government wants to control who has access to the platform and this is largely because it will limit the chances of it falling into the wrong hands,” said Salsi. “However, limiting access will ultimately leave some banks more exposed to cyber threats and could impact their vulnerability management, leaving larger windows of opportunities for attackers. “It's hopeful these gaps won't exist for too long because of competition among Advanced AI platforms. GPT-5.5 was issued only a few weeks after Mythos, and it's safe to assume more advanced AI platforms will surface soon, closing gaps and delivering more of these systems to a larger pool of critical organizations.” He added that it could also introduce a single point of failure in the global banking sector if every institution were using the same product. Anthropic has not commented publicly on its approach regarding which financial institutions receive Mythos access, although it's not just financiers who are pondering the company’s decision-making. It transpired this week that the EU’s cybersecurity agency, ENISA, will receive access to Mythos Preview, while the US equivalent, CISA, is yet to be selected. Glasswing goes big In other news, Anthropic said on Tuesday it is looking to induct many more organizations into its Project Glasswing initiative, taking the total number of members from around 50 to 200. The additional 150 or so organizations hail from 15 different countries and will join the old guard, comprised of security shops and other tech giants, government agencies, and open-source maintainers. It has not named these organizations officially, although reports suggest that South Korea is among the 15 countries, and its science ministry, Samsung, SK Hynix, and SK Telecom are among the new inductees. Project Glasswing is something of a private members’ club – a carefully selected cohort of organizations with early access to Anthropic’s most advanced Mythos Preview model, the one the company claims will fundamentally alter the cybersecurity landscape. The cynics among us may see such claims as an extension of Anthropic’s marketing playbook, which some believe involves stoking excitement about a product through fear. When the AI biz announced Mythos in April, it did so by dubbing it too dangerous to unleash on the public. It was billed as an expert bug hunter and zero-day specialist, capable of finding vulnerabilities in code far more efficiently than humans. The oft-touted nugget from launch was the 27-year-old OpenBSD bug Mythos found during initial testing, but there were many more zero-days and other critical vulnerabilities – novel ones – Anthropic said its model was able to unearth. Those who have tinkered with Mythos Preview already report mixed results. Cloudflare CISO Grant Bourzikas wrote in May that the model represented “a real step forward,” and was able to find a series of low-severity bugs and chain them into working exploits. Others, such as cURL’s Daniel Stenberg, called Mythos Preview “an amazingly successful marketing stunt,” after it found just one vulnerability in the data transfer software. Likewise, security expert Kevin Beaumont said the model “is not great,” and “it’s marketing, essentially.” He said Mythos Preview was good at finding bugs in vibe-coded applications, but aside from that, it was not discovering much beyond what the models of yesteryear were capable of. Regarding the new intake of Glasswing partners, Anthropic but said each would have to pass its own security requirements before being granted access to Mythos Preview. It also said the new organizations brought into the fold all managed critical infrastructure services, and a successful attack on their systems could be “catastrophic.” “For most partners, we estimate that a major attack could affect more than 100 million people, with important ramifications for both global and national security,” the company said on Tuesday. “This expansion is the next step toward our long-term goals: for AI to make all software more secure, and for us to help the industry adjust to how AI could change many of the core assumptions of cybersecurity.” The big when? As for when the Mythos model will be made available to the wider public, Anthropic has kept that largely under wraps, but don’t expect it to be anytime soon. In its latest Glasswing announcement, the company said the safeguards required to prevent abuse are not yet available. “We’re working as quickly as we can to safely release Mythos-level capabilities in general access,” it stated. “To do so, we’ll need highly robust safeguards that prevent the model’s cyber capabilities from being misused – safeguards that we (and, to our knowledge, all other AI developers) have yet to develop. “Because cybersecurity has both helpful and destructive uses, making safeguards that are both strong and precise enough is a major challenge.” Anthropic may face some tough decisions in the next year, however, as by its own reckoning other AI companies will produce Mythos-level capabilities within their own models inside 6-12 months. Confusingly, it also said on Friday that it would be releasing Mythos-class models to all customers in the coming weeks. Anthropic said it will expand Glasswing further before Mythos is more widely launched, bringing in more critical infrastructure orgs, open-source maintainers, and safety testers. “We intend for future expansions to cover organizations in the US and overseas, just as this one does. We also intend to scale up our Cyber Verification Program, which would grant Mythos-class capabilities to many more organizations for specific cyberdefense tasks.” ® Updated to add at 1420 UTC: An OpenAI spokesperson confirmed to us that retired Brit politico and newspaper editor George Osborne – who has been OpenAI’s Head of OpenAI for Countries since the end of 2025, has "written to the CEOs / CISOs" at several UK financial institutions including HSBC, Natwest, Lloyds Banking Group, Nationwide, and others "to extend access to our latest defensive cyber capabilities." Global financial infrastructure provider Swift is also included. They added: "In total, we are extending access to nine leading financial institutions, which includes Santander Group and Natwest Group that already have access to GPT-5.5-Cyber as part of our existing relationships."
Today, we welcome the 46th government onboarded to Have I Been Pwned’s free gov service: the Philippines.
The Philippines’ National CERT, working with the Department of Information and Communications Technology, now has access to monitor official government domains against the data in HIBP. This gives their Cyber Threat Intel and Monitoring Section the ability to identify exposure across government email addresses and respond quickly when those accounts appear in new data breach.
This is precisely what the HIBP government service was built for: helping national cyber teams better understand credential exposure across their government domain space, monitor for compromised accounts on demand via API, and receive notifications when government domains are impacted by newly loaded breach data.
The Philippines joins a growing list of national CERTs and government cybersecurity teams using HIBP to help strengthen national cyber defense, protect government departments and resources, and reduce the risk posed by compromised credentials before attackers can take advantage.
Even ransomware cartels make mistakes, and in this case, it was a biggie that could have landed the responsible crim in a Russian gulag: accidentally infecting a company located in a Commonwealth of Independent States country. In what threat-hunter Dominic Alvieri deemed the ransom “dumbass of the day,” Nova, the affiliate program for ransomware crew RAlord, on Tuesday issued an apology to Eriell Group, a major oilfield services company with headquarters in Uzbekistan and a corporate office in Moscow. Apparently, Eriell contacted Nova and notified the ransomware operators about an affiliate's mess-up. The affiliate has since been banned from the criminal operation, we’re told. In addition to issuing a “formal apology,” the ransomware gang promised to assist Eriell with the recovery process “free of charge.” The malware slingers claimed they didn’t encrypt any files, and pledged not to leak any of the stolen data. “Apparently, the first rule of ransomware club, you don't attack organizations in the Commonwealth of Independent States (CIS), is still very much in effect in 2026,” Recorded Future threat intelligence analyst Allan Liska told The Register. While cybercrime is technically illegal in Russia and other CIS countries, their governments often provide safe harbor for extortionists and other financially motivated crims - especially if they also happen to work day jobs as state-sponsored hackers - and local police look the other way unless the gangs infect any in-country organizations. Some crews, like the DragonForce cartel, VanHelsing ransomware-as-a-service group, and notorious LockBit operators, expressly prohibit their gang members and affiliates from hitting Russian and other CIS targets. We’re guessing that the Nova affiliate will be high up on all of these gangs’ do-not-hire lists for quite a while. Still, they aren’t the first cybercriminal, Russian-speaking or otherwise, to make seriously dumb mistakes. Earlier this year, notorious data-leak-and-extortion crew Scattered Lapsus$ Hunters claimed they had gained "full access" to Resecurity's systems and stolen "everything." Resecurity later offered its "congratulations" to the cybercrime crew, which had fallen into the threat intel team's honeypot – resulting in a subpoena being issued for one of the data thieves. Pro-Russian hacktivist crew CyberVolk got sloppy when they debuted a ransomware service late last year. They hardcoded the master keys - this same key encrypted all files on a victim's system - into the executable files, thus allowing victims to recover encrypted data without paying any extortion fees. While that mess-up worked in the victim orgs’ favor, another coding error committed by Sicarii malware developers makes it nearly impossible for companies to recover their files: the Sicarii encryptor generates a new cryptographic key pair during every execution - but then discards the private key, meaning there's no recoverable master key. Similarly, a programming mistake in Nitrogen ransomware prevents the gang's decryptor from recovering victims' files, again making paying up futile. Trellix VP of threat intel strategy John Fokker recently told us that he got so sick of seeing the security industry "glorifying threat actors,” that he and his team decided to troll the baddies, and started publishing the Dark Web Roast. “These are just individuals, they just use computers, and they just want to steal your data and make money,” Fokker told The Register. “They're not mythical. They don't have superpowers." And just like any other individual - or superhero - they sometimes slip up, and give the rest of us a moment of snarky joy. ®
Bug hunting has become a whole lot more exciting in recent months with both Anthropic and OpenAI touting their latest models (that also happen to be super-scary exploit machines). On Tuesday, as Anthropic announced a fourfold expansion to its Mythos preview program, Cisco jumped into the fray, praising the transformative power of AI - but without disclosing how many bugs the latest frontier models found. Cisco SVP Anthony Grieco in a Tuesday blog said that the advanced AI systems, including Anthropic’s Claude Mythos Preview and OpenAI’s GPT 5.5-Cyber, scanned 1.8 billion lines of code in eight weeks looking for vulnerabilities in Cisco products - a task that otherwise would have taken the networking giant’s advanced security team eight years to accomplish. However, Grieco, who heads Cisco’s security and trust organization, didn’t say how many flaws Mythos and other frontier models uncovered, or if they have all been fixed. The company also did not respond to The Register’s questions about this. Grieco did say that “speed is only half the story,” calling the “real breakthrough” the “scale, quality, and impact” of the models’ findings. The 1.8 billion lines of code, written in more than 25 different languages, spanned Cisco’s portfolio, we’re told. Netzilla paired the models with a “human-guided harness,” and achieved a false positive rate of under 3 percent, Grieco wrote. “Rather than focusing on a specific scope for a security evaluation, we can assess entire code bases of a product. It’s like switching from a flashlight to a flood light to illuminate a dark room,” he said. “Because each finding is validated through a hybrid of AI and human expertise, our engineering teams are receiving actionable intelligence rather than a wall of warnings.” Meanwhile, Anthropic on Tuesday said it expanded Project Glasswing to about 150 additional organizations, bringing the total partner count to about 200. Project Glasswing is the AI giant’s controlled partner program for giving selected orgs access to Claude Mythos Preview. When it announced the new model and partner program in early April, Anthropic limited the preview to about 50 entities, claiming Mythos is so good at finding and exploiting security holes that all hell would break loose and the zombie apocalypse would hit should the model fall into the wrong hands. Since April, these select government agencies and corporate partners - including Cisco - have been using Mythos to find and fix bugs in their own products. Palo Alto Networks, one of the original Project Glasswing partners, said in May that after spending a month using frontier AI models, including Anthropic's Mythos, to scan more than 130 products across its three platforms, it uncovered 26 CVEs representing 75 underlying security issues. For comparison, the cybersecurity giant said it typically discloses fewer than five CVEs per month. At the time, a company exec forecast “a narrow three-to-five-month window for organizations to outpace the adversary before AI-driven exploits start to become the new norm.” The newly expanded Project Glasswing spans more than 15 countries, and, while an Anthropic spokesperson declined to name them or the new partner companies, it’s a safe bet that these are likely Western and/or “friendly” nations. So not China and Russia. Rubrik, a data security and management vendor, said that it was among the new Glasswing partners. The expanded list also reportedly includes the Korea Internet and Security Agency (KISA), along with Samsung Electronics, SK hynix, and SK Telecom, among other Korean companies. “The group covers several industries that weren’t well-represented in our initial cohort, such as power, water, healthcare, communications, and hardware,” according to a Tuesday Anthropic blog. “And many of the new partners are vendors - companies or nonprofits that maintain codebases that are relied upon by lots of other organizations around the world, including governments.” Each new partner must meet Anthropic’s security requirements before they gain access to Mythos, the company added. ®
Available for Android 12 and later, the anti-scam feature is baked into Google Dialer, which sends a silent “confirmation signal” to ensure whoever’s calling you is who they appear to be.
Russia's domestic spy agency says it has uncovered a sprawling foreign espionage operation that allegedly turned the smartphones of senior Russian officials into pocket-sized surveillance devices, though it has so far offered little in the way of evidence. In a statement Tuesday, the Federal Security Service (FSB) claimed foreign intelligence agencies implanted malware on the mobile devices of high-ranking Russian officials, allowing operators to steal data, intercept conversations, and secretly activate microphones and cameras to monitor targets and their surroundings. “This software is used to steal existing data, eavesdrop on ongoing conversations, and conduct covert acoustic and video monitoring of the environment near electronic devices, all aimed at obtaining sensitive information,” the FSB said. The agency said it had opened a criminal investigation into illegal access to computer information and the distribution of malicious software. It did not identify the alleged intelligence service responsible, disclose how many officials were affected, name the malware involved, or provide any technical indicators that would allow independent verification of the claims. As things stand, the FSB has revealed the accusation but not the proof. However, the notion that foreign intelligence agencies might target the phones of senior Russian officials is hardly farfetched. State-backed mobile surveillance campaigns have become a routine feature of modern espionage, and Moscow has spent years accusing Western intelligence services of abusing consumer technology platforms for intelligence gathering. In 2023, the FSB claimed that thousands of iPhones had been compromised in a US National Security Agency spying operation. At the time, Russian security vendor Kaspersky disclosed what became known as “Operation Triangulation”, an iPhone surveillance campaign that infected devices through iMessage. Apple denied cooperating with any government, while Kaspersky stopped short of attributing the operation to the NSA. Moscow's spy agencies are hardly strangers to offensive cyber operations themselves. Last year, the FBI warned that hackers linked to the FSB's Center 16 were exploiting a years-old Cisco vulnerability to collect configuration files from thousands of network devices associated with critical infrastructure operators. So while the FSB's latest allegations may ultimately prove accurate, they lack the technical evidence security researchers would normally expect before accepting claims of a major cyber espionage campaign. ®
Cisco is moving to a scheduled, twice-monthly security release model to address AI-accelerated vulnerability discovery, providing customers with greater predictability and streamlined, systemic security updates.
Navigate the transition to quantum-safe security with Cisco’s Quantum Resilience Framework. We provide a clear path to protecting your network and data against future quantum threats through standardized, multi-layer resilience and clear roadmaps.
In the post-Mythos era, AI makes exploits faster than ever. Cisco builds security right into your network and infrastructure, helping your organization stay resilient even when threats move faster than human response.
Microsoft has moved to calm an increasingly noisy backlash from the security community after appearing to threaten legal action against a researcher who spent the past several weeks dumping Windows zero-days onto the internet. In a statement published on Monday, Redmond said it has "no intention to pursue action against individuals conducting or publishing security research”, a noticeably softer position than the one it adopted just days earlier when it condemned a string of public vulnerability disclosures and invoked its Digital Crimes Unit. The updated statement follows a public feud with a researcher known as Nightmare-Eclipse, who released multiple Windows zero-days along with proof-of-concept exploit code. Several of those vulnerabilities have since been exploited in the wild, turning what might have remained an obscure disclosure dispute into a much larger argument about how vendors handle security researchers. Last week, Microsoft described the publication of exploit code for unpatched flaws as "never justifiable" and warned it would work with law enforcement when criminal activity harmed customers. The statement triggered immediate criticism from parts of the security community, with researchers warning that the language risked creating a chilling effect around vulnerability research. Former Microsoft employee and security researcher Kevin Beaumont described the company's position as a "dumpster fire of its own making," while Luta Security founder Katie Moussouris, who created Microsoft's bug bounty program, told The Register the response sent mixed messages. She questioned Microsoft's decision to tout researcher compensation and recognition while responding to a researcher who claims he received neither, and argued that references to the Digital Crimes Unit made the post feel "vaguely threatening." She added that, regardless of the specifics of the dispute, Microsoft risked creating a chilling effect on other researchers considering whether to report vulnerabilities. What’s more, if Microsoft's goal was to isolate Nightmare-Eclipse, that may not be going entirely to plan. The researcher claimed over the weekend that other researchers had begun handing over vulnerabilities following Microsoft's response, including an alleged flaw dubbed "Bitskrieg" that breaks Secure Boot trust guarantees and bypasses BitLocker. Nightmare-Ecipse said the bug will be released “sometime in June”. Against that backdrop, Microsoft's Monday message read more like damage control than deterrence. "We have no intention to pursue action against individuals conducting or publishing their security research," Microsoft said, adding that legal referrals would be reserved for people engaging in malicious activity that causes harm to customers. The company also acknowledged that "some interactions have fallen short" and said it was working to learn from feedback. Notably, Microsoft stopped well short of conceding any of Nightmare-Eclipse's specific allegations. The researcher had accused Microsoft of deleting accounts used for vulnerability reporting, refusing to pay bounties, and mishandling communications through the Microsoft Security Response Center. The company has not publicly addressed those claims directly. Nobody should mistake Monday's statement for a sudden conversion to the church of full disclosure. Microsoft remains firmly of the view that researchers should report vulnerabilities privately, give vendors time to fix them, and avoid dropping working exploit code onto the internet for everyone else to play with. The problem for Redmond was that the argument had drifted well beyond the actions of one researcher. What began as a dispute over a string of Windows zero-day releases was rapidly turning into a debate about Microsoft's relationship with the security community and whether the company was comfortable invoking lawyers when that relationship soured. The updated statement looks very much like an attempt to slam the brakes on that narrative. ®
Identity in Cloud Control provides visibility, ability to take action on human, non-human, and AI agent identities, and powers identity-driven AgenticOps with AI Canvas.
McAfee Labs has discovered a massive, ongoing malware campaign called WeedHack that disguises itself as free Minecraft mods and game clients to infect players’ computers. Since January 2026, it has logged more than 116,000 victim infections, averaging 2,000 to 3,000 new hits every single day.
What makes WeedHack different from most malware is how cheap and easy it is to use.
Typically, a hacker would pay hundreds of dollars per month to access attack tools through underground criminal networks. WeedHack offers a free version to anyone with a Discord account and an internet connection. A premium upgrade, which includes the ability to secretly watch victims through their own webcam, starts at just $5 a month.
This low barrier has attracted a younger crowd of would-be attackers, many of them appear to be teenagers or young adults. Our researchers were startled to discover teens using these tools not just for financial theft, but to harass and bully their peers, a pattern we’ve documented and that makes this campaign especially concerning.
The good news for McAfee users: Web Protection actively blocks the sites distributing WeedHack, and Threat Explainer tells you exactly why a flagged file is dangerous, so you’re never left guessing.
Key Facts at a Glance
What
Details
Campaign name
WeedHack
Active since
January 2026
Total victims logged
116,464+
New infections per day
~2,000–3,000
Malicious files discovered
3,820+ unique files
Malicious download URLs
240+
Free tier available?
Yes. Anyone can sign up
Premium price
Starting at $5/month; $24.99 lifetime
Who is being targeted
Minecraft players worldwide
Most affected country
United States, followed by Germany, India, the UK, Italy, and others
What attackers can access
Once installed, it can steal passwords, hijack accounts, and, for paying customers, it can give the attacker live access to the victim’s screen, webcam, and files.
The financial impact
It can steal Discord tokens, crypto wallet credentials, Minecraft account credentials.
Hackers will hold your information for ransom, requiring a large payment in exchange for your data.
WeedHack is a Malware-as-a-Service (MaaS) campaign, meaning it’s a criminal business that sells hacking tools to customers, the same way a legitimate software company sells subscriptions.
The “product” is malware that gets secretly installed on a victim’s computer when they download what they think is a Minecraft mod or client. Once installed, it can steal passwords, hijack accounts, and, for paying customers, it can give the attacker live access to the victim’s screen, webcam, and files.
The campaign operates a polished, professional-looking dashboard hosted openly on the internet (not the dark web). That dashboard lets customers track their victims, download stolen data, and launch remote access features, all from a browser.
What it looks like to buy a subscription from WeedHack.
The Cyberbullying Problem
One of the most disturbing findings from our investigation is how WeedHack is being used.
While monitoring the campaign’s Telegram channel, which had over850 members during the time of our research, we observed that many customers appear to be teenagers and young adults, and a significant portion are using the remote access tools not for financial gain, but to harass and intimidate other players.
We observed attackers recording victims through their webcams without consent and sharing those recordings in the Telegram channel as trophies. Others used knowledge of victims’ IP addresses and system access to threaten them.
It’s important to note that, at the current time of publishing, the Telegram channel has been taken down, and no replacement channel has appeared. McAfee is continuing to monitor any new channels that may be established by the threat actors for further communication.
Still, what we observed is a form of cyberbullying with unusually invasive tools behind it. If you or your child has been contacted by someone online claiming they have hacked your computer, have your webcam footage, or know your IP address, take it seriously.
What to do if this happens:
Do not follow the attacker’s instructions, it makes things worse
Tell a trusted adult immediately (parent, guardian, school counselor)
Contact your local law enforcement, this may constitute criminal conduct.
Do not engage with the attacker or attempt to negotiate
The Telegram channel uncovered by McAfee.
How Do People Get Infected?
WeedHack spreads in two main ways, and the campaign even provides its customers with step-by-step tutorials on how to carry out both.
1. Fake YouTube Videos
Attackers create convincing YouTube videos reviewing or demonstrating Minecraft clients and mods.
The videos are well-produced, some include voiceover narration, and link to malicious download sites in the description and comments.
One video McAfee identified had over 7,500 views before being flagged. Comments are also sometimes planted by the attackers claiming the files are safe.
2. Fake Mod Websites
WeedHack instructs customers to build convincing-looking websites that mimic official Minecraft mod pages. These sites are deliberately designed to show up high in search engine results for popular mod names, a tactic called SEO poisoning.
Some fake sites include fake security warnings, Discord links, and GitHub references to appear legitimate. In one case, a site warned players to “only download from us,” while actively distributing malware.
Minecraft clients and mods specifically targeted include: Meteor Client, Radium Client, Wurst Client, LiquidBounce, Impact Client, Future Client, and others.
An example of a video hiding a malicious link in the description.
What Happens When You’re Infected?
Infection happens in four stages that happen silently in the background after a victim opens the downloaded file.
Stage 1 – First Contact: The malicious file launches quietly (without showing a console window), connects to a hidden network, and phones home to receive further instructions. It uses a sophisticated technique involving the Ethereum blockchain to locate its command server in a way that’s difficult to block or take down.
Stage 2 – Taking Hold: The malware disables Windows Defender protections, gathers detailed information about the victim’s computer (processor, graphics card, RAM, operating system), and takes a screenshot of their screen. It then steals Discord tokens and browser passwords and cookies. For McAfee users, this is where Web Protection would prevent users from visiting the site, and where our Antivirus would prevent any downloaded malware from taking hold.
Stage 3 – Digging In: The malware installs itself so that it automatically restarts every time the victim logs into their computer. It sets up a hidden scheduled task that runs continuously, even at the highest system privileges.
Stage 4 – Full Access: For premium customers, an additional component is installed that connects the attacker to the victim’s computer in real time. This includes live screen sharing with keyboard and mouse control, webcam access, keylogging (recording every keystroke), a reverse shell (full command-line access to the computer), and the ability to upload or download any files.
A separate component specifically hunts for Telegram credentials and cryptocurrency wallets, sending that data to a different server every five minutes.
Minecraft’s mod ecosystem is enormous and largely unregulated. Kids routinely search YouTube and Google for performance-boosting clients, cosmetic mods, and gameplay cheats, exactly the kinds of things WeedHack exploits.
Here’s a practical guide for families:
Red Flag
Safe Practice
The mod isn’t on the developer’s official website
Only download from CurseForge, Modrinth, or the mod’s verified GitHub
A site or video tells you to disable your antivirus to run the file
Never disable antivirus for a game mod. Legitimate mods don’t ask you to
A site you’ve never heard of claims to be the “only official” source
If you can’t verify the site is official, don’t download from it
Download links are in YouTube comment sections
Treat comment section links as a red flag, always
Your antivirus flags a file as malware, but they try to tell you to ignore it, it’s a “false alarm”
Use McAfee’s Threat Explainer to find out why this is malicious. Don’t disable antivirus
One of the best ways parents can protect their families is with McAfee’s award-winning antivirus and Web Protection, which are specifically designed to detect threats like WeedHack and help block malicious downloads before a device can be compromised.
Are McAfee Users Protected?
McAfee has been actively tracking WeedHack samples and detects this threat under the following signatures:
Trojan:Win/Weedhack.AA through Trojan:Win/Weedhack.AE
McAfee provides multiple layers of protection against threats like WeedHack.
Web Protection helps block access to malicious websites distributing infected Minecraft mods, stopping the threat before a file is ever downloaded.
Award-winning antivirus detects and blocks malware if a malicious file does make it onto your device.
Threat Explainer shows exactly why a file was flagged, helping users understand what happened and avoid similar scams in the future.
Together, these protections help proactively block risky downloads, reactively stop malware, and explain what to watch for next.
McAfee Labs continues to monitor WeedHack and will update coverage as new samples and domains are identified. For the full technical report including indicators of compromise, see the McAfee Labs analysis.
Key Terms Explained
Term
What it means
Malware-as-a-Service (MaaS)
A criminal business model where hackers sell or rent attack tools to other people, just like a software subscription
RAT (Remote Access Trojan)
Malware that gives an attacker remote control over a victim’s device — screen, files, camera, and more
Infostealer
Malware designed to silently collect and transmit passwords, cookies, and account credentials
SEO Poisoning
Manipulating search engine results so a malicious website appears near the top when someone searches for a legitimate product
Minecraft Client/Mod
Third-party software that modifies or enhances the Minecraft game experience. Legitimate ones are common; WeedHack fakes them
Minecraft Session ID
A token that proves you’re logged into Minecraft. Stealing it lets an attacker take over your account without your password
Keylogger
Software that secretly records every key a person types — including passwords, messages, and search queries
Reverse Shell
A connection from the victim’s computer back to the attacker that gives the attacker full command-line control
EtherHiding
A technique that hides a malware’s server address inside the Ethereum blockchain, making it very difficult to block
Discord Token
A credential that lets someone access your Discord account. Stealing it gives attackers full access without needing your password
Minecraft is a 2011 sandbox game developed and published by Mojang Studios. It is the best-selling video game in the world and has sold over 350 million copies worldwide. Its popularity has spanned over a decade due to its versatile gameplay, offering multiple game modes, including one of the most memorable Story Mode in gaming history.
It allows players to create and host multiplayer servers with a variety of gameplay options and offers a wide range of custom launchers, game mods, and cheats to choose from.
Its massive popularity and widespread use of third-party tools have also given rise to a dark side of the Minecraft ecosystem, which is filled with Remote Access Trojans (RATs), credential stealers, keyloggers and other malware threats.
McAfee Labs has recently uncovered a colossal Minecraft-focused Malware-as-a-Service (MaaS) campaign named ‘Weedhack’, that allows threat actors to remotely access and manipulate the victims’ screen, webcam and file system through a dashboard hosted on the clear net, making it easily accessible to anyone with a Discord account and an internet connection.
Key Findings
‘Weedhack’ has been active since January 2026 and masquerades as genuine Minecraft clients and mods to infect users.
We’ve discovered over 3820 unique malicious JAR files that are part of this attack and over 240 URLs responsible for distributing this malware.
This campaign utilizes SEO poisoning and YouTube to generate traffic to these malicious URLs. We also found two YouTube channels and multiple videos that demonstrate Minecraft Mods and Clients and redirect viewers to these URLs.
The campaign has accumulated a total of 116,464 hits, averaging approximately 2000 to 3,000 hits per day.
The campaign provides an enterprise-grade dashboard that allows customers to view stolen credentials and system information, download the payload, configure notifications, access tutorials, and remotely monitor their victims.
This campaign deploys EtherHiding, a technique that uses Ethereum blockchain to fetch its latest C2 domain. The responses are RSA-signed and verified before execution, helping protect the network from campaign takeover attempts.
We’ve uncovered 10 domains that host the next stage payloads and host the malware dashboard for the Weedhack campaign.
We’ve identified 11 domains that hosted similar MaaS campaigns in the past, orchestrated by the same threat actor.
We’ve unearthed the threat actor’s Telegram account and uncovered a Telegram channel for customers, with over 850 members, as of writing this blog.
This campaign offers two service tiers: free and premium.
The free tier includes a comprehensive infostealer capable of targeting Minecraft session IDs and four Minecraft launchers, collecting system information, and stealing cookies and passwords from 36 different browsers. It also targets 56 browser-based crypto wallets and 12 desktop crypto wallets, along with Discord, Steam, and Telegram credentials. It can search for files using 24 different keywords and includes screenshot capture capabilities.
For premium users, with subscriptions starting at $5 per month, it offers additional remote-access capabilities such as webcam access, keylogging, reverse shell execution, screen sharing with keyboard and mouse access, and file management features for uploading and downloading files.
While monitoring the Telegram channel, we found that WeedHack malware is a major catalyst for cyberbullying. Many of its customers appear to be teenagers and young adults and are using remote access capabilities to threaten, harass and monitor their victims, which are around the same age.
Updated Claude has gone offline on the day after its maker Anthropic filed for what is expected to be a blockbuster IPO. The popular chatbot and coding tool suffered an outage from around 0600 UTC on Tuesday, with Anthropic saying the team was investigating the issue. By 1042 UTC, the status page said a fix had been implemented and the technical team was monitoring the results. Some users continued to complain to The Register about the disruption after that point. Downdetector shows users reporting the LLM service from Anthropic was down twice momentarily yesterday. A surge in reports started from 0700 UTC today and peaked at 0948 UTC, after which they started to fall. The timing of the technical difficulties is unfortunate for Anthropic, the company founded in 2021 by former employees of OpenAI. Yesterday, the company submitted a draft registration statement to the US Securities and Exchange Commission for a proposed initial public offering (IPO) for common stock. It has yet to set the price of shares but a May funding round which raised $65 billion valued the company at around $965 billion (£717 billion), more than rival OpenAI, makers of chatbot ChatGPT. It is set to be a monster year for IPOs, with Elon Musk’s SpaceX and OpenAI also anticipated to join the frenzy. Each is expected to be valued at around $1 trillion. Claude Code has bolstered Anthropic’s reputation and has been well-received by some developers. Reportedly, Anthropic earns more in revenue despite having a fraction of the users OpenAI claims to serve. According to the Wall Street Journal, Anthropic is on the verge of reporting its first quarter of operating profit, according to people at the company who spoke anonymously. ® Updated to add at 1618 UTC, June 2: A source from Anthropic told us: "Earlier today, some users may have experienced intermittent issues or slower response times across Claude Code, Cowork, Claude.ai, and the API. Service has been fully restored, and we're grateful to our users for their patience. Customers accessing Claude through Google Cloud's Vertex AI or Amazon Bedrock were not affected."
The Police Service of Northern Ireland (PSNI) is warning the public to be wary of scammers spoofing its switchboard number in an attempt to profit by calling marks from a "trustworthy" number. A member of the public reported an attempted scam on Monday afternoon. A phone call came in from what appeared to be the PSNI’s switchboard number, and the caller pretended to be a member of the force inquiring about a case in which the recipient was involved. “The caller told the person there was an investigation linked to their name involving money transfers to narcotic-related countries and was subsequently asked to provide information about their bank cards,” said the PSNI’s Inspector Walker. We don’t have any expert criminals here at The Register, but we think it would be pretty sage advice for someone looking to increasingly pass as a police representative not to be so stupid as to ask for gift cards as “part of the investigation process.” “The caller then asked them to purchase gift cards and send across the codes for those, stating that this was part of the investigation process and that the money would be returned to them,” Inspector Walker added. “This made the reporting party suspicious, however, and thankfully, the victim didn’t share any of their personal or bank details with the caller, who they then blocked.” Officials confirmed to The Register that the police’s number was spoofed, and this case was not instigated by a real member of the switchboard team. Spoofing the switchboard’s phone number marked “a very concerning situation,” Walker said, urging the public to remain vigilant to similar calls. The PSNI is continuing to make follow-up enquiries about the report, but has not yet detained any individual in connection with the attempted fraud. Anyone who falls victim to digital fraud in the UK should contact the police, their bank, and Action Fraud, all of which can offer the necessary assistance. “Our advice is that you should never disclose your personal or financial details over the phone, in person, or by email, to someone you don't know,” said Walker. “Guarding your personal and banking details is essential.” The attempted scam is the second disclosed by the PSNI in as many days. On Monday, it warned of a separate case involving an elderly woman being defrauded of a sum north of £250,000 ($336,000) after being targeted by individuals operating a fake cryptocurrency scheme. “After initially sending a relatively small amount, the woman then ‘invested’ larger amounts on a number of occasions after the criminals convinced her that she needed to send more in order to get her initial investment back,” said Detective Inspector Moffett, of the PSNI’s Serious Crime Branch. “After she unknowingly downloaded malware at their instruction, they were able to gain control of her electronic devices and, we believe, transfer further sums from her account.” Cryptocurrency investment scams are among the most pervasive in the world, with figures from the US suggesting the problem is growing increasingly severe. According to the FBI’s annual digital crimes report, it received 48 percent more complaints about crypto investment scams last year than it did the year before, with losses also rising 25 percent. Much of this pain was shouldered by those aged 60 and over, the agency added. ®
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