OpenAI Launches Daybreak: Codex Security Agentic Engine Scanned 1.2M Commits, Found 792 Critical and 10,561 High-Severity Vulnerabilities in Open-Source
The Hacker News·high signal
OpenAI's Daybreak initiative (launched May 11) puts Codex Security — an agentic scanner that reads code, forms hypotheses, runs tests, and validates findings like a human researcher — into production vulnerability workflows. Beta results: 1.2M commits scanned, 792 critical + 10,561 high-severity issues found across OpenSSH, GnuTLS, PHP, and Chromium, with 3,000+ critical/high vulns patched. Three access tiers gated by verification: default GPT-5.5, Trusted Access for Cyber, and GPT-5.5-Cyber for specialized defensive work.