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OpenAI Launches GPT-5.4-Cyber to Boost Defensive Cybersecurity

ID: 4de01b69-0efc-5eb6-9916-a2fb7ad36896

STIX ID: report--4de01b69-0efc-5eb6-9916-a2fb7ad36896

Feed Name: HackRead

Date Published: 2026-04-16

Date Updated: 2026-04-22

Author: Deeba Ahmed

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OpenAI announced GPT-5.4-Cyber, a version of GPT-5.4 tuned for defensive cybersecurity tasks, and expanded its Trusted Access for Cyber (TAC) program to authenticated defenders and teams; the release highlights capabilities like binary reverse engineering, an emphasis on identity-verified access for advanced features, and integration with tools such as Codex Security to help find and patch vulnerabilities.

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