Anthropic Expands Project Glasswing to ~150 Orgs Across 15+ Countries to Find Zero-Days

Anthropic / Releasebot·medium signal

Anthropic is scaling Project Glasswing — its joint industry initiative using AI to find and fix critical software vulnerabilities — to roughly 150 new organizations across more than 15 countries. The company says its most powerful model to date identified thousands of zero-day vulnerabilities over several weeks of testing. The expansion coincides with Claude Code shipping Opus 4.8 as default plus a security-guidance plugin that reviews and fixes vulnerabilities in the same session.