Technology Apr 22, 2026 · 1 min read

Anthropic’s most dangerous AI model just fell into the wrong hands

Anthropic's Mythos AI model, a powerful cybersecurity tool that the company said could be dangerous in the wrong hands, has been accessed by a "small group of unauthorized users," Bloomberg reports. An unnamed member of the group, identified only as "a third-party contractor for Anthropic," told the...

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The Verge
by Jess Weatherbed
Anthropic’s most dangerous AI model just fell into the wrong hands
Vector illustration of the Anthropic logo.

Anthropic's Mythos AI model, a powerful cybersecurity tool that the company said could be dangerous in the wrong hands, has been accessed by a "small group of unauthorized users," Bloomberg reports. An unnamed member of the group, identified only as "a third-party contractor for Anthropic," told the publication that members of a private online forum got into Mythos via a mix of tactics, utilizing the contractor's access and "commonly used internet sleuthing tools."

The Claude Mythos Preview is a new general-purpose model that's capable of identifying and exploiting vulnerabilities "in every major operating system and every major web browser …

Read the full story at The Verge.

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This article was originally published by The Verge and written by Jess Weatherbed.

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