According to Odaily, OpenAI has formally launched GPT-5.5-Cyber model and the Trusted Access for Cyber (TAC) framework designed for cybersecurity defenders. The model is now available in limited preview to defenders responsible for critical infrastructure, supporting specialized cybersecurity workflows including vulnerability identification, triage, malware analysis, binary reverse engineering, and patch verification. OpenAI is collaborating with Cisco, CrowdStrike, and Palo Alto Networks to accelerate the security ecosystem’s defense cycle through GPT-5.5, enhancing efficiency in vulnerability research, patching, monitoring, and supply chain security.
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