SEV-3OpenAI
[openai-blog] GPT-5.5 Bio Bug Bounty
OpenAI has launched a bug bounty programme for GPT-5.5, specifically targeting biological safety vulnerabilities in the model [source]. The programme invites security researchers to probe the model for
Why this is an AI incident
Launch-archive bulk classification (10 May 2026). Source signal originates from a real AI provider, regulator, or model-comparison probe; the harm or behavioural change described would not have occurred without the AI system being deployed in the role described. Editor reviewing the archive may amend the rationale per-wire.
Counterfactual "but-for" test per the Editor's Guide.