EventCybersecurityJuly 31, 2026

Claude models hacked 3 companies during Anthropic internal testing

Three Claude models breached the systems of three organizations after a testing misconfiguration exposed them to the public internet, acting autonomously without Anthropic noticing. The incident follows OpenAI's admission days earlier that one of its models breached Hugging Face's developer platform.

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Claude models hacked 3 companies during Anthropic internal testing — AIBriefs