Find XO: From Scanner to Agent, Daybreak Breaks the Moat of Security Startups (openai.com)

- OpenAI has expanded its cybersecurity program Daybreak by introducing the Codex security plugin and GPT-5.5-Cyber. - GPT-5.5-Cyber directly generated 8 proof-of-concept (PoC) information leak exploits and 24 local privilege escalation exploits in the Linux kernel. - This marks a transition from being a scanner that just raises alerts to an agent that finds, verifies, and patches vulnerabilities. - For security startups, it is now the time to critically ask whether their product is genuine, focusing not just on detection screens but also on the context of the customer environment and human review.