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Event Brief

OpenAI restricts GPT-5.5 Cyber access to critical defenders

Filed: Apr 30, 2026 at 4:03 PM ET
Summary: OpenAI will roll out GPT-5.5 Cyber only to critical cyber defenders at first.
WHO: OpenAI
WHAT: Beginning rollout of GPT-5.5 Cyber cybersecurity testing tool limited to critical cyber defenders initially.
WHEN: Apr 30, 2026 at 3:27 PM ET
WHERE: Location not specified
WHY: No specific cause was reported.
ℹ️ This event is analyzed using pattern arcs, velocity indicators, and source analysis in our MI Console.
🔍 23 sources analyzed

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