On June 9, Anthropic released Claude Fable 5, the most capable model it has ever made, generally available. It also did something unusual: it shipped one model as two products, split not by capability but by a layer of safety classifiers. Fable 5 goes to the public. Its twin, Claude Mythos 5, the same underlying model with the cyber safeguards lifted, stays locked to a vetted group of cyber
ServiceNow has warned about a security incident in which unknown threat actors exploited a flaw to obtain deeper unauthorized access to susceptible instances. "On June 5, 2026, ServiceNow applied a security update to hosted customer instances," the company revealed in an advisory that requires customer access. "The update concerned a security issue that could allow an unauthenticated user, in
The anonymous security researcher going by the name Chaotic Eclipse (aka Nightmare-Eclipse) has released a proof-of-concept (PoC) exploit for yet another Microsoft Defender zero-day named RoguePlanet. "The exploit is a race condition, so it's a hit or miss," the researcher, who published the exploit under a new GitHub account, "MSNightmare" said. "I have managed to get a 100% success rate on
Cybersecurity researchers have flagged half a dozen vulnerabilities in protobuf.js, a JavaScript and TypeScript implementation of Protocol Buffers (Protobuf), that, if successfully exploited, could result in remote code execution (RCE) and denial-of-service (DoS) attacks. "In affected environments, a single malicious protobuf schema, descriptor, or crafted payload could be enough to trigger
Meta on Tuesday announced that it will use information shared by other businesses to personalize users' feed and responses from its artificial intelligence (AI) chatbot, expanding its scope beyond targeted ads. "Businesses often share information about people's activity on their sites with us to make ads more relevant," Meta said in a statement. "We already use this data - like games you play
Veeam has released security patches to address a critical flaw in its Backup & Replication software that could result in remote code execution. Tracked as CVE-2026-44963, the vulnerability carries a CVSS score of 9.4 out of a maximum of 10.0. "A vulnerability allowing remote code execution (RCE) on the Backup Server by an authenticated domain user," Veeam said in a Tuesday advisory. It
Microsoft on Monday confirmed that it temporarily removed some GitHub repositories in response to a recent security incident that led to 73 of its open-source projects being compromised to inject an information stealer into the code. "Our priority is to protect customers and the broader ecosystem," a Microsoft spokesperson told The Hacker News via email. "We temporarily removed some
Two Russia-aligned cyber attack campaigns have continued to exploit a security flaw in WinRAR to target Ukrainian organisations, almost a year after patches for the vulnerability were released. The activity has been attributed by Trend Micro to Earth Dahu (aka Gamaredon) and SHADOW-EARTH-066 (aka UAC-0226). It involves the exploitation of CVE-2025-8088, a path traversal flaw that allows an
University of Toronto researchers have built and tested a proof-of-concept AI-driven computer worm that uses a locally hosted open-weight large language model to reason its way through a network, generate tailored attack strategies for each target it encounters, and replicate itself, all without human intervention and without touching a commercial AI service. The preprint, posted to arXiv on
Google has released security updates to address 74 vulnerabilities, including one that has come under active exploitation in the wild. The high-severity vulnerability, tracked as CVE-2026-11645 (CVSS score: 8.8), has been described as an out-of-bounds memory access in V8, Chrome's JavaScript and WebAssembly engine. "Out-of-bounds read and write in V8 in Google Chrome prior to 149.0.7827.103
Organizations have more visibility than ever. Growing tech stacks provide greater coverage, and network security teams are increasingly adopting AI and automation to help with routine tasks and reduce manual effort. But the same challenges persist. Outages still last hours, causing significant financial losses, operational disruption, and reputational impact. Threat response and mean time to
A malicious website can work out which sites you visit and which apps you open, using nothing but JavaScript and the timing of your SSD. The attack, called FROST, needs no native code, no extension, and no permission prompt. You open the page, leave the tab sitting there, and it watches the drive for contention in the background. Researchers at Graz University of Technology built it and
The Miasma supply chain campaign has sparked a fresh attack wave called Hades, this time involving 37 malicious wheel artifacts across 19 packages in the Python Package Index (PyPI) registry, as the Mini Shai-Hulud-style attacks continue to be refined and splintered to target specific ecosystems. "The compromised releases shipped a *-setup.pth file that attempts to execute automatically
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Monday added a high-severity flaw impacting BerriAI LiteLLM to its Known Exploited Vulnerabilities (KEV) catalog, citing evidence of active exploitation. The vulnerability, tracked as CVE-2026-42271 (CVSS score: 8.7), is a command injection vulnerability that could allow any authenticated user to run arbitrary commands on the
Security researchers have published a detailed, working exploit for a Linux kernel use-after-free that lets an unprivileged local user escalate to root and break out of a container. The flaw, CVE-2026-23111, sits in the kernel's nf_tables packet-filtering code and was patched upstream on February 5, 2026. Exodus Intelligence released its full technical walkthrough on June 8, and it is not even
Meta on Monday said it detected and blocked spear-phishing attempts linked to Israeli spyware vendor NSO Group. In addition, the tech giant said it's filing a federal court contempt order against the company for violating a permanent injunction that barred it from targeting WhatsApp and its users. "They tried to trick people into clicking on malicious links to drive them to external websites
Check Point has warned of active exploitation of a critical vulnerability impacting Remote Access VPN and Mobile Access deployments that are configured to use the deprecated IKEv1 key exchange protocol. The vulnerability, tracked as CVE-2026-50751 (CVSS score: 9.3), is a case of a logic flow weakness in certificate validation that allows an unauthenticated remote attacker to bypass user
Phishing has always been a numbers game. AI has turned it into a volume machine. Attackers can now create convincing emails, fake login pages, and tailored lures in minutes. Every polished message adds another case for Tier 1 to review, another link to inspect, and another alert that cannot be dismissed at a glance. As the queue grows, a credential theft attempt or malware delivery can easily
Monday again. The weekend was meant to be quiet. It wasn't. Last week had poisoned packages, a broken AI helper, and a worm tearing through repos. The ugly part: basic tricks still worked. A chatbot got fooled. A bot token got leaked inside the malware. The same old mistakes showed up again. And while everyone chased the loud stuff, quieter attackers sat in inboxes for months, reading mail and
Mythos is real. I know a big chunk of the industry thinks it's a marketing stunt, and I get why. I get it. But I've seen the findings, and they're bad. These aren't "whoops, this line right here is wrong, and that's RCE." They're novel combinations of a few dozen issues out of thousands of things every SAST scanner already finds, chained together into something much worse. It's real creativity,
A China-nexus cyber espionage group has been observed deploying a BSD variant of a known backdoor called BRICKSTORM, as well as two other malware families codenamed PLENET (aka GRIMBOLT) and AGENTPSD to target Linux systems. The activity has been attributed by Volexity to a threat cluster it tracks as VerdantBamboo, which it said overlaps with hacking groups known as Clay Typhoon (Microsoft),
Cybersecurity researchers have disclosed details of a financially motivated data theft extortion campaign that has targeted dozens of organizations across professional, legal, and financial services in the U.S. between January and May 2026. The activity has been attributed by Google Mandiant and Google Threat Intelligence Group (GTIG) to a threat actor dubbed UNC3753, which is also known as
Microsoft has announced that Visual Studio Code (VS Code) will apply a two-hour delay before extensions for the integrated development environment (IDE) are updated automatically to a newer version in an attempt to tackle software supply chain threats. "When automatic updates are enabled, new versions are auto-updated two hours after they are published, adding an extra layer of protection
OpenAI has begun rolling out a new Lockdown Mode to ChatGPT for eligible personal accounts to reduce the risk of data exfiltration arising from prompt injection attacks. The feature is primarily designed for people and organizations that handle sensitive data and require stricter protection guarantees. Lockdown Mode is available to logged-in users across Free, Go, Plus, and Pro, and
A researcher has reverse-engineered the iOS SDK that Bright Data embeds in consumer apps and documented how it turns devices, including always-on smart TVs, into exit nodes that relay web-scraping traffic for a data business Bright Data markets heavily to the AI industry. The company, the successor to Luminati, operates what it calls the largest residential proxy network in the world,
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added a high-severity security flaw impacting SolarWinds Serv-U multi-protocol file server software to its Known Exploited Vulnerabilities (KEV) catalog, citing evidence of active exploitation. The vulnerability, tracked as CVE-2026-28318 (CVSS score: 7.5), is a denial-of-service (DoS) bug that causes the service to crash
Two things landed within days of each other this week. A security startup reported 21 previously unknown vulnerabilities in FFmpeg, the media library inside almost everything that touches video, all of them found by an autonomous AI agent. The same week, Google shipped Chrome 149 with patches for 429 security bugs, the most ever in a single release. Only the FFmpeg bugs were found by AI.
Microsoft's GitHub repositories have become the latest to fall victim to the ongoing Miasma self-replicating supply chain attack campaign. The incident impacted 73 Microsoft repositories across four of its GitHub organizations, including Azure, Azure-Samples, Microsoft, and MicrosoftDocs, per OpenSourceMalware. The development has prompted GitHub to disable access to those repositories. "
Cisco has warned that a high-severity security flaw impacting Catalyst SD-WAN Manager has come under active exploitation. The vulnerability, tracked as CVE-2026-20245, carries a CVSS score of 7.8 out of a maximum of 10.0. It affects the following deployment types - On-Prem Deployment Cisco SD-WAN Cloud-Pro Cisco SD-WAN Cloud (Cisco Managed) Cisco SD-WAN for Government (FedRAMP) "A
Multiple software supply chain attacks have hit the npm ecosystem, with threat actors using both malicious and poisoned versions of over 50 legitimate packages to distribute a Rust-based information stealer and a self-spreading worm, respectively. According to JFrog, the information stealer "scrapes every secret it can find on a developer's machine, hides behind an eBPF kernel rootkit, and
Arabic-speaking users have emerged as the target of a new Android spyware codenamed Asin, according to findings from ESET. The Slovakian cybersecurity company said it first detected the malware spread via multiple campaigns in early 2025, with each attack wave making use of distinct websites mimicking utilities, war-related updates, and a government news source: govlens[.]net, which
Cybersecurity researchers have discovered a previously unreported threat cluster dubbed OP-512 (where "OP" stands for "opponent") that has been observed targeting Microsoft Internet Information Services (IIS) servers to deploy a bespoke web shell framework. ReliaQuest has assessed with moderate to high confidence that the espionage-focused activity is linked to China. "OP-512 was highly
Eighteen months ago, the AI SOC was a marketing line. Today it's a budget item. The category has crossed over from interesting to inevitable, with billions of dollars now flowing into AI-powered security operations platforms, agentic SOC tools, and AI co-pilots built into every layer of the security stack. The data shows SOCs are buying, deploying, and standing up AI capabilities at the fastest
Threat actors are actively exploiting a critical security flaw in Everest Forms Pro, a WordPress plugin with about 4,000 active installations, to execute arbitrary code, leading to a complete site compromise. The vulnerability in question is CVE-2026-3300 (CVSS score: 9.8), a remote code execution bug impacting all versions of the plugin up to, and including, 1.9.12. A patch for the flaw was
Security researchers and the FBI are warning that a wave of FIFA-themed fraud is already hitting World Cup 2026 fans, days before the June 11 kickoff. Recent reports describe thousands of lookalike FIFA domains, banking malware hidden inside pirate streaming apps, and at least one operation that copies FIFA's login page well enough to take over real accounts. It is an obvious target. More than
The threat actor known as PCPJack has hijacked cloud servers associated with Amazon Web Services (AWS), Google Cloud, and Microsoft Azure to create a covert SMTP email relay network. "Compromised business servers across the U.S., Europe, and Asia were quietly converted into SMTP proxies, verified for mail relay capability, and synced to a downstream consumer every five minutes," Hunt.io said in
Cisco has patched a bug in Unified Communications Manager that lets an unauthenticated attacker on the network write files to the box and, from there, climb to root. It is tracked as CVE-2026-20230, and proof-of-concept exploit code is already public. Cisco's PSIRT says it has not seen the flaw used in attacks yet. The PoC shortens that runway. The flaw is a server-side request forgery.
A security researcher found a flaw in Anthropic's Claude Code GitHub Action that let an attacker take over vulnerable public repositories running it, with nothing more than a single opened GitHub issue. Because Anthropic's own action repo used the same workflow, a working attack could have pushed malicious code into the action itself and onto the projects downstream that pull it. RyotaK of GMO
Over the past several weeks, the cybersecurity community has been reminded how quickly frontier and agentic AI in defense networks can challenge our assumptions. When Anthropic's Claude Mythos model was made available to a limited set of organizations as a technical preview, it was reported that an unauthorized group claimed that it had gained access within hours. The incident, if true, was
It got stupid again. The internet still feels held together with tape. Bad plugins, old bugs, fake tools, trusted apps doing shady things. Same mess, new wrapper. And now the weird stuff is normal. Forums go down and come back worse. Cheap hackers get better toys. AI starts breaking real systems. Great. Read the whole thing before it ruins your week anyway. Unauthenticated
A new China-linked cybercrime group known as TA4922 has expanded its targeting focus to target European organizations in the U.K., Germany, Italy, and South Africa. These efforts have been complemented by a "rapid operational tempo" and a continually evolving malware arsenal comprising known families like ValleyRAT (aka Winos 4.0) and Atlas RAT (aka AtlasCross RAT), as well as previously
Cybersecurity researchers have shed light on a macOS malvertising campaign codenamed Operation FlutterBridge that spreads a new backdoor called FlutterShell. According to Palo Alto Networks Unit 42, the campaign is said to be the next stage of a previously reported activity cluster dubbed JSCoreRunner (aka FileRipple) in late August 2025. The cybercrime group behind the two attack chains is
Cybersecurity researchers have flagged a large-scale operation that impersonates open-source and freeware projects to funnel unsuspecting users through a Traffic Distribution System (TDS) and deliver malware families like Remus Stealer, AnimateClipper, and the SessionGate framework. "The sites are well-designed and often look like legitimate project portals at a glance, sometimes referencing
Unknown attackers spent at least five months inside the Outlook mailbox of a senior executive at a major global stock exchange, copying the inbox out in small, repeated batches and routing it through Dropbox and OneDrive so the traffic blended into normal cloud activity. Symantec and Carbon Black's Threat Hunter Team reported the campaign this week. This points to espionage, not a money grab:
The U.S. Department of Justice (DoJ) on Wednesday announced the results of a sweeping action undertaken by government authorities and private sector companies to combat cyber-enabled and cryptocurrency fraud targeting Americans. The "Disruption Week" operation began May 18, 2026, leading to the takedown of millions of social media, email, and internet access accounts used by transnational
A single poisoned notification from WhatsApp, Slack, SMS, Signal, Instagram, or Messenger could have hijacked Google Gemini's voice assistant on Android and made it open a victim's connected windows, fake a message from their boss, push the phone into a Zoom call, or quietly poison its long-term memory. No malicious app on the phone is required. The assistant just had to treat a hostile
Cybersecurity researchers have disclosed a one-click attack via Microsoft Visual Studio Code (VS Code) that makes it possible to steal a user's GitHub token. "Just by clicking a link, it's possible for an attacker to steal a GitHub token that can read and write to your repos, including private ones," security researcher Ammar Askar said. GitHub supports a feature called GitHub.dev that runs as
Redis has patched a use-after-free in its blocking-client code that lets an authenticated user run arbitrary OS commands on the machine hosting the database. The flaw was found by an autonomous AI tool built to hunt bugs in large codebases. Tracked as CVE-2026-23479, the flaw was introduced in Redis 7.2.0 and remained in every stable branch until the May 5 fixes, unnoticed for over two years.
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Wednesday added a critical flaw impacting Mirasvit Cache Warmer, a popular Magento full-page cache extension, to its Known Exploited Vulnerabilities (KEV) catalog, following reports of active exploitation in the wild. The vulnerability, tracked as CVE-2026-45247 (CVSS score: 9.8), is a case of deserialization of untrusted
Cybersecurity researchers have flagged a new malspam campaign that makes use of Google's DoubleClick domain as a way to evade detection and ultimately deliver an unidentified .NET-based loader. "Before the victim ever reaches attacker-controlled infrastructure, the lure routes through DoubleClick, a legitimate Google-owned domain that many security tools are less likely to treat as suspicious,"