AI agents carried out every step of this ransomware attack – then left the victim an 80-page security audit

A human ransomware crook used frontier AI models to breach an enterprise network in less than 10 hours, an intrusion Unit 42 says would normally take human operators around two weeks. The human attacker then told negotiators that they used frontier models and agentic attack frameworks with AI agents carrying out each step in the intrusion, including leaving an 80-page security audit for the victim company. “What made the attack stand out was AI-assisted operational efficiency, without the need for a novel zero-day or super elite tradecraft,” Unit 42 incident responders said in a Wednesday report. “The attacker left tactical execution to AI agents that monitored, evaluated, acted and re-planned in real time, increasing speed...

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