OpenAI announces Daybreak initiative around Codex Security

OpenAI launched Daybreak, a new cybersecurity initiative built around Codex Security and partner companies.

The program provides defensive help such as secure code review, threat modeling, detection support, and patch validation for approved organizations.

Daybreak uses different GPT-5.5 access tiers and tighter verification controls through Trusted Access for Cyber.

The effort reflects OpenAI’s push to bring frontier models into governed security workflows, aiming to speed vulnerability response while limiting misuse.