OpenAI revokes access to cybersecurity research program for some users due to technical issue

Aug 19, 2026

AI Summary

OpenAI has revoked access to its Trusted Access for Cyber (TAC) program for several security researchers, citing a technical error. The TAC program provides vetted researchers with access to advanced AI models for cybersecurity work, and affected users have been asked to reapply for access.

Multiple security researchers reported losing access to OpenAI's Trusted Access for Cyber (TAC) program, which offers advanced AI tools for cybersecurity research with fewer restrictions.
OpenAI confirmed that the revocation was due to a technical issue affecting a limited number of users and has asked those affected to reapply and complete the verification process.
The TAC program aims to help trusted researchers identify and report vulnerabilities more effectively, while preventing misuse by cybercriminals.
The issue appears to primarily affect researchers located outside of the U.S. and Europe.
OpenAI recently launched a new tier within TAC called Daybreak Blue, which provides access to advanced models for defensive security work, alongside a higher tier, Daybreak Red, for authorized vulnerability research.
Researchers have expressed concerns about the limitations imposed by AI guardrails, which they feel hinder their ability to conduct legitimate cybersecurity work.

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OpenAI revokes access to cybersecurity research program for some users due to technical issue

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