Anthropic's Mythos Finds 271 Firefox Vulnerabilities in One Cycle — Amodei Warns of Cyber 'Moment of Danger'

CNBC·high signal

Mozilla used a preview of Anthropic's restricted Mythos model to identify 271 vulnerabilities in Firefox — 180 rated sec-high — in a single evaluation run, more than human teams found in 18 months. Firefox shipped 423 bug fixes in April vs. 31 a year prior. Amodei warned of a 6-to-12-month window to patch tens of thousands of vulnerabilities before Chinese AI catches up, calling it a 'moment of danger.' Mythos remains restricted under Project Glasswing due to its dual-use exploit potential. For builders: AI-powered security auditing is now orders of magnitude faster than manual review.