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Anthropic takes Fable 5 and Mythos 5 offline to comply with a directive from the Trump administration to prevent use by foreign nationals. The post Anthropic Says It Has Taken Its Latest AI Models Offline to Comply With New Export Controls appeared first on SecurityWeek.

Anthropic said on Friday it will "abruptly disable" its most advanced artificial intelligence (AI) models, Claude Fable 5 and Mythos 5, for all users after the U.S. government ordered it to suspend access to the models for foreign nationals, whether inside or outside the U.S., citing national security concerns. The AI company said it received an order at 5:21 p.m. ET, instructing it to suspend

Attackers took over more than 400 packages in the Arch User Repository (AUR) this week and rewrote their build scripts to install a credential stealer on any machine that built them. The malware is a Rust binary built to harvest developer secrets. When it lands with root, it can also load an eBPF rootkit to hide itself. The AUR is Arch Linux's community package collection, and it is separate

Google on Friday said it's pursuing legal action against a Chinese cybercrime network, accusing it of using its Gemini artificial intelligence (AI) agent to send phishing text messages targeting Americans. The network is said to be behind the development and management of a phishing-as-a-service (PhaaS) software kit called Outsider, per the tech giant. "The operation weaponized Gemini to help

Instead of hiding on the laptops and servers defenders watch most closely, a China-nexus group spent close to a decade hidden inside the Linux login system itself. Sygnia, which tracks the group as Velvet Ant, says it backdoored the PAM and OpenSSH components that decide who is allowed to sign in, planting its access where ordinary cleanup could not reach it. The network it targeted had no

Other noteworthy stories that might have slipped under the radar: ICS device exposure remains flat as attack surface widens, Microsoft issues incident response playbook for AI, IBM and AT&T accused of hack cover-ups. The post In Other News: Google Security Layoffs, AudiA6 Takedown, $400 Million Coupang Fine appeared first on SecurityWeek.

Industry professionals comment on various aspects of Fable 5, including dual-use capabilities, safeguards, and tiered access. The post Industry Reactions to Claude Fable 5: Feedback Friday appeared first on SecurityWeek.

Cybersecurity researchers have described what they say is a new class of attack that can trick artificial intelligence (AI) coding agents into running arbitrary code on developer machines. Called Agentjacking by Tenet Security, the attack can be triggered by means of a fake error report crafted using Sentry, an open-source error-tracking and performance-monitoring platform. "The attack

The hackers published 5GB of data, including customer personal information and credentials for the RTKBase platform. The post Iranian Cyber Group Handala Claims Cal Water Hack appeared first on SecurityWeek.

For most of the past decade, managed detection and response was the answer to a real problem. Security teams couldn't staff around the clock, couldn't hire enough analysts, and needed someone else to handle the alert queue. MDR stepped in. It worked well enough. Until now. The threat landscape has changed faster than the MDR model can adapt. Attackers are using AI to move faster, generate more

Cybersecurity researchers have disclosed details of three now-patched security flaws impacting LangGraph, including a critical vulnerability chain that could result in remote code execution. LangGraph is an open-source framework created by LangChain to build complex, stateful, and multi-agent artificial intelligence (AI) agentic applications. "An SQL injection in LangGraph's function could

The critical-severity OS command injection vulnerability allows attackers to execute arbitrary code with root privileges. The post Ivanti Sentry Exploitation Attempts Hitting Honeypots appeared first on SecurityWeek.

The browser refresh resolved critical and high-severity security defects, including a dozen use-after-free bugs. The post Chrome 149 Update Patches 28 Vulnerabilities appeared first on SecurityWeek.

An INTERPOL-led operation last month resulted in the disruption of Sniper Dz, a decade-long phishing-as-a-service (PhaaS) platform, Group-IB said Thursday. The effort, codenamed Operation Ramz, took place between October 2025 and February 2026, and saw authorities from 13 countries in the Middle East and North Africa (MENA) region making 201 arrests. Included among them was Guedz, the primary

An AI hacker claims to have achieved a prompt-based jailbreak shortly after Fable 5’s launch, but Anthropic says it’s not a real jailbreak. The post Anthropic Disputes Fable 5 AI Jailbreak appeared first on SecurityWeek.