Technology Jul 31, 2026 · 1 min read

Anthropic says Claude accidentally hacked real companies too

Anthropic just realized several of its Claude AI models hacked into the systems of three different organizations during testing, acting on their own and without the company noticing. The revelation comes days after rival OpenAI said one of its own models had breached developer platform Hugging Face,...

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The Verge
by Robert Hart
Anthropic says Claude accidentally hacked real companies too

Anthropic just realized several of its Claude AI models hacked into the systems of three different organizations during testing, acting on their own and without the company noticing. The revelation comes days after rival OpenAI said one of its own models had breached developer platform Hugging Face, adding to growing unease over whether frontier AI labs are doing enough to control the increasingly capable systems they are building.

In a blog post describing the incidents, Anthropic said Claude gained unauthorized access to the systems during cybersecurity evaluations. All of the attacks happened during "capture-the-flag" exercises, a commo …

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This article was originally published by The Verge and written by Robert Hart.

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