Security researchers in an OpenAI bug bounty program hacked OpenAI, accessing its "monorepo" on GitHub, using a cybersecurity version of Opus 4.8 and Opus 5 (Robert McMillan/Wall Street Journal)

TechmemeSeptember 18, 2026en

Robert McMillan / Wall Street Journal : Security researchers in an OpenAI bug bounty program hacked OpenAI, accessing its “monorepo” on GitHub, using a cybersecurity version of Opus 4.8 and Opus 5 — A bug-hunting independent security research team was able to access OpenAI's internal code system, exposing growing risks in automated cyber threats

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• OpenAI
• Forskning