Mythos and the Defender Time That Vanished

On April 7, 2026, Anthropic released Claude Mythos Preview into Project Glasswing, a limited-access program. Twelve launch partners — AWS, Apple, Broadcom, Cisco, CrowdStrike, Google, JPMorgan Chase, Linux Foundation, Microsoft, NVIDIA, Palo Alto Networks, and Anthropic — got first access, with 40+ additional organizations behind them. No Korean firm appears on the list. In Anthropic's own evaluations, Mythos autonomously found thousands of zero-day vulnerabilities across every major operating s