Accelerating and Modernizing ATOs with OpenAI’s Trusted Access for Cyber
Introduction On February 5, 2026, OpenAI introduced Trusted Access for Cyber (TAC), an identity- and trust-based access framework designed to give verified defenders more useful access to advanced cyber capabilities while preserving safeguards against misuse.[1] TAC launched alongside GPT-5.3-Codex, which OpenAI described as its most cyber-capable frontier reasoning model at the time.[2] Since then, the […]