Machine Heart

Sep 18, 2026 · Information Security

3 Researchers, 72 Hours, Claude Opus: How AI Automated a Full OpenAI Breach

A three-person Hacktron AI team used Anthropic's Claude Opus to exploit a libheif vulnerability in OpenAI's Discourse forum, chain an SSO misconfiguration, and gain access to OpenAI's internal monorepo within 72 hours, demonstrating how AI is lowering the barrier for sophisticated cyberattacks.