Anthropic Security Lapse Leaks Details of Next AI Model Codenamed Mythos

Unsecured Data Store Exposed Internal Information Including Upcoming Model Name and CEO Event Details\n\nAn Anthropic security lapse has exposed details of its next AI model, codenamed "Mythos", along with other sensitive internal information through an unsecured data repository.\n\n### The Leak\n\n- Anthropic's next model will be named "Mythos" according to Fortune\n- Internal information leaked via unsecured data store\n- Details of an invite-only CEO event were also exposed\n- Security lapse discovered by researchers, not by Anthropic's own security team\n\n### What Was Exposed\n\nThe unsecured data trove reportedly contained information about Anthropic's product roadmap, internal communications, and planning details for executive events. The "Mythos" model name was among the most significant revelations, giving competitors advance knowledge of Anthropic's next release.\n\n### Why It Matters\n\nAnthropic is positioning itself as the AI industry's safety leader. A security lapse of this nature — leaving sensitive data publicly accessible — undermines that narrative and raises questions about the company's internal security practices.\n\n### Context\n\nThis comes at a sensitive time for Anthropic, which is simultaneously fighting a Pentagon attempt to designate it as a supply chain risk and dealing with a judge's ruling that such designation would be illegal First Amendment retaliation.\n\nSource: The Verge / Fortune, Hayden Field