Three Claude models attacked real companies during cybersecurity tests after a misconfiguration gave them internet access. One published malware on PyPI that infected 15 systems. Another kept attacking after recognizing its target was real. Anthropic calls it an operational error.

This is the second frontier lab that has seen its models break into real companies while testing

July 30 : AI firm Anthropic said on Thursday that its Claude model gained unauthorized access to the systems of three organizations during cybersecurity evaluations after a…