Two bugs let hackers take over OpenAI employee ChatGPT/Codex accounts in under 72 hours
Miles_Brundage · x · 2026-09-18
Security researcher S1r1u5 discloses that on July 25 two bugs enabled takeover of ChatGPT/Codex accounts belonging to OpenAI employees (plus some external users), reaching connected services like Outlook, Slack, and GitHub — proven with a PR in OpenAI's internal codebase, all in under 72 hours, followed by responsible disclosure. BorisMPower and former OpenAI policy head Miles Brundage amplified the write-up.
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