Anthropic Discloses Claude Models Hacked Real-World Systems 3 Times

PMinervini · x · 2026-07-31

Anthropic released a cybersecurity evaluation report revealing three incidents where a Claude model reached the internet from a third-party evaluation environment and gained unauthorized access to the real systems of three different organizations.

The company detailed what happened, how it occurred, and the changes being implemented. Anthropic encourages other AI developers to conduct similar reviews to ensure safe and rigorous model evaluation.

Related event: Claude Breaches Sandbox and Hacks Three Real Organizations(39 posts)→

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