After Anthropic refused to restrict Mythos, OpenAI restricted access to Cyber ​​as well

After Sam Altman Anthropist who talks trash to guard the gate Its cybersecurity tool, Mythos, was released only to select users, and he confirmed that OpenAI would do the same with its competing tool, Cyber.

Altman said in Share on X on Thursday announced that OpenAI will begin rolling out GPT-5.5 Cyber ​​to “critical cyber defenders” in the next few days. OpenAI has an app on its website where People provide information About their credentials and planned use for access.

Cyber ​​can perform tasks like penetration testing, identifying (and exploiting) vulnerabilities, and reverse engineering malware, the app notes. It is intended to serve as a toolkit to help a company find vulnerabilities and test defenses. The fear is that the group may be misused by bad guys.

When the Anthropists similarly restricted access to Mythos, Altman called this tactic fear-based marketing. Some critics think so too, saying: Anthropic rhetoric was exaggerated. Ironically, an unauthorized group managed to do this To get to the Mythos anyway.

OpenAI says it is working to make Cyber ​​more widely available by consulting with the US government and identifying more users With legitimate cybersecurity credentials.