OpenAI Pulls Cyber Researchers' Access Nine Days After New Tier Launch

OpenAI revoked Trusted Access for Cyber (TAC) access for at least five security researchers on August 19, 2026, nine days after launching its Daybreak Blue tier. OpenAI cited a "technical issue" and instructed affected users to reapply and repeat verification. Daybreak Blue grants vetted researchers access to frontier models including GPT-5.6 Sol with reduced guardrails for defensive security work.