Unauthorized Users Breach Anthropic's Dangerous Mythos AI Model on Day of Announcement

Unauthorized users breach Anthropic's powerful new Mythos AI model — a system the company warns could enable dangerous cyberattacks — on the very day of its announcement, with a private group reportedly accessing and using it regularly, though not yet for malicious cybersecurity purposes.

• A small group of unauthorized users have gained access to Anthropic's powerful new Mythos AI model, which the company warns is capable of enabling dangerous cyberattacks.
• The unauthorized users, discovered in a private online forum, began accessing Mythos on the same day Anthropic announced plans to release it to a limited number of companies for testing.
• The group has been using Mythos regularly since gaining access, though not for cybersecurity purposes, according to a source who provided screenshots and a live demonstration as corroboration.