Claude
Anthropic’s Claude breached 3 orgs, uploaded PyPI malware during tests
Anthropic said today that during internal security testing, one of its Claude models built a malicious Python package and uploaded it to PyPI, where it ran on 15 real systems before the registry’s automated defenses pulled it. The company disclosed it as one of three incidents where Claude models reached the open internet from evaluation […]
Anthropic confirms Claude is down worldwide
Claude is down for some users, with Anthropic confirming elevated errors across multiple AI models. The disruption is causing requests to fail with a “529 Overloaded” message, including in Claude and tools that rely on its API. Anthropic began investigating the outage at 7:49 p.m. UTC on July 29. At 8:33 p.m. UTC, the company said […]
Fake Claude app promoted by Bing ads pushes SectopRAT malware
A malvertising campaign on the Bing search service is pushing a fake Claude desktop app installer hosted on a legitimate Claude.ai domain to deliver the SectopRAT malware. At least 29 organizations were compromised between July 21-22 during the malicious operation, which researchers call FakeAgent. The attackers used a malicious Claude Artifact hosted on Claude’s legitimate […]
Claude Chrome extension flaw lets malicious extensions trigger AI actions
A flaw in Anthropic’s Claude for Chrome browser extension could allow a malicious extension to trigger predefined AI actions by simulating user clicks, potentially allowing it to abuse Claude’s access to connected services such as Gmail, Google Docs, Google Calendar, and Salesforce. The issue was discovered by Ax Sharma of Manifold Security, who says it […]
Claude Fable 5 stays free for paid users until July 19 as Anthropic buys more time
Anthropic has just extended access to Claude Fable 5 for paid subscribers until July 19, giving you another week to keep using the most powerful model. Previously, Anthropic said Fable 5 would be included in Pro, Max, Team, and premium Enterprise subscriptions only through July 7. After that, you would need usage credits to keep […]
Claude Fable 5 isn’t permanently leaving subscriptions, Anthropic says
Anthropic says Claude Fable 5 won’t be accessible via Claude subscriptions after July 7, but it’s not a permanent change, and the company expects the model to return outside the usage-based plan soon. Fable 5 was recently restored after the US government lifted export controls on Anthropic’s most powerful models, Fable 5 and Mythos 5. As […]
Claude Fable relaunch disappoints users with nerfed performance
Claude Fable, the company’s most powerful model, is now available to all users, but early impressions are disappointing, as it appears to be nowhere near the original release. When the Department of Commerce announced that it was lifting the ban on Claude Fable, I was holding my breath and counting seconds for the model to show […]
Anthropic rolls out Sonnet 5 with near-Opus 4.8 performance at a lower price
Anthropic is now rolling out Sonnet 5, and it’s almost as good as the Opus range, but it is designed to be cheaper than the company’s flagship model. In a blog post, Anthropic said Claude Sonnet 5 is “built to be the most agentic Sonnet model yet,” and added that it comes with advanced features, such […]
Anthropic to restore Claude Fable access on Wednesday
Anthropic has confirmed that the Department of Commerce has lifted export controls on Claude’s two most powerful models, Fable 5 and Mythos 5. In a post on X, Anthropic confirmed that it will begin restoring access to Fable 5 on Wednesday. On the other hand, Mythos will remain exclusive to select companies. “We’ve received notice that the Department of […]
Clean GitHub repo tricks AI coding agents into running malware
An agentic coding tool tasked with cloning and setting up a seemingly benign GitHub repository could execute a malicious payload that remains invisible to security scanners, AI agents, and human reviewers. Researchers at Mozilla’s Zero Day Investigative Network (0DIN) AI security platform say that the compromise happens with “no exploit code, no warning, no suspicious […]