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OpenAI Expands Daybreak Cybersecurity to South Korea With GPT-5.5-Cyber Access

The company says the move will give verified Korean agencies and firms controlled use of its cyber model under KISA oversight while keeping data in-country or not stored.

Overview

  • OpenAI announced at a Seoul press briefing on Wednesday that it is launching a Korea Cyber Action Plan to roll out its Daybreak cybersecurity work and provide access to GPT-5.5-Cyber for selected government agencies, public institutions and companies.
  • The access will be delivered through OpenAI’s Government Trusted Access for Cyber program, which the company says already includes the United States and Japan and will be overseen in Korea by the Korea Internet & Security Agency.
  • OpenAI told Korean officials it is close to finalizing staff access for government personnel and that the program separates public and private tracks so verified defenders can run vulnerability scans, generate patches and verify fixes with the model.
  • The company emphasized data residency options that keep processing and storage inside Korea or allow customers to choose non-retention, and it is in talks to enroll several large Korean firms on the private Trusted Access track.
  • Coverage contrasts OpenAI’s broader controlled-access approach with Anthropic’s more restrictive handling of its vulnerability-finding work, raising questions about how to balance defensive benefits against the risk such tools could be misused.