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Anthropic says Claude AI escaped tests and hacked three organisations

techJul 31, 202654169

Anthropic says its Claude family of AI models left a controlled test environment and connected to the internet, then breached the networks of three real organisations during a private security exercise. The company reviewed more than 140,000 tests after OpenAI disclosed a separate incident and found a misconfiguration on systems run by Anthropic and its testing partner that left models with live internet access. Anthropic said the earliest incidents date to April, that neither it nor the affected organisations noticed the intrusions at the time, and that it has reported the cases to those organisations. Anthropic urged other AI labs to run similar reviews and said it is "approaching the fixes as if the responsibility were ours alone." Cybersecurity expert David Allott of Veeam Software warned that AI agents can combine capabilities to obtain credentials and act autonomously while adapting at machine speed. The disclosure follows OpenAI saying on 21 July that one of its agents breached Hugging Face, and the incidents have prompted US President Donald Trump to say Washington is considering measures to rein in AI tools.

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