Anthropic limits access to AI model, fearing future of cyberattacks

AI models have reached a level of coding capability where they can surpass all but the most skilled humans at finding and exploiting software vulnerabilities, Anthropic said.

Anthropic has announced it is rolling out its AI model, Claude Mythos Preview, to only a select group of companies after the new model found thousands of critical vulnerabilities across operating systems, web browsers and other software.

The new general-purpose model, Anthropic said, also found high-security vulnerabilities in every major operating system and web browser.

AI has already been used by hackers to conduct cyberattacks. There has been a 72% year-over-year increase in AI-powered cyberattacks, with 87% of global organizations experiencing AI-enabled cyberattacks in 2025, according to AllAboutAI. 

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