Claude Opus 5 Chained Two Flaws to Take Over OpenAI Staff Accounts. ShinyHunters Claims the FBI. F5 Zero-Day. Ubuntu Container Escape. WordPress Comment Turned Into RCE.
Claude Opus 5 Hijacked OpenAI Staff Accounts. ShinyHunters Claims the FBI. F5 BIG-IP Zero-Day. Ubuntu Container Escape. WordPress Turned Comments Into RCE. | SunsetHost Hacker News SunsetHost Hacker News Feature Edition | September 21–23, 2026 AI Used Against AI. Comments Turned Into Root. The MFA Held and the Breach Happened Anyway. Claude Opus 5 Chained















