Around June 22, 2026, OpenAI expanded its "Daybreak" cyber-defense program, releasing the full version of its defender-focused model GPT-5.5-Cyber and launching "Patch the Planet," an initiative to help fix vulnerabilities in open-source software. It also unveiled a Codex Security plugin that lets users find, validate and fix vulnerabilities directly inside Codex, along with a Cyber Partner Program to help security firms build products. The announcement comes amid rising concern over AI models' cybersecurity capabilities, with OpenAI stressing a focus on the defensive side rather than offense.
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