Unauthorized group has gained access to Anthropic’s exclusive cyber tool Mythos, report claims

Anthropic told TechCrunch it is investigating the claims, but maintains that there is no evidence that its systems have been ...
The Hacker News

Cohere AI Terrarium Sandbox Flaw Enables Root Code Execution, Container Escape

CVE-2026-5752 CVSS 9.3 flaw in Terrarium enables root code execution via Pyodide prototype traversal, risking container ...
Tech Xplore

Restricted Mythos AI model reaches unauthorized users, triggering Anthropic probe

American AI developer Anthropic said Tuesday it was investigating unauthorized access to Mythos, its powerful model which the ...
The Next Web

Unauthorized users gained access to Anthropic’s restricted Mythos AI model on launch day via a third-party contractor’s environment

A Discord group accessed Anthropic’s Mythos AI model on its launch day by guessing its URL via a third-party vendor environment.