OpenAI's new Trusted Access program gives Microsoft its most capable models for cyber defense

THE DECODER / 4/24/2026

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Key Points

  • OpenAI and Microsoft are partnering through a new “Trusted Access” program to strengthen cybersecurity defenses amid growing concern about AI being used as a threat.
  • The article frames the collaboration as a response to wider debate triggered by Anthropic’s “Mythos” model, which is intended to autonomously find security flaws.
  • The Trusted Access initiative is positioned as a way for Microsoft to obtain highly capable OpenAI models specifically for cyber defense use cases.
  • Overall, the development highlights a shift toward integrating advanced AI models into security workflows while attempting to manage risk and trust.

OpenAI and Microsoft are joining forces to shore up cybersecurity as AI models become a bigger threat. The debate started with Anthropic's Mythos model, which is designed to hunt down security flaws on its own.

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