‘Exploit every vulnerability’: rogue AI agents published passwords and overrode anti-virus software

Exclusive: Lab tests discover ‘new form of insider risk’ with artificial intelligence agents engaging in autonomous, even ‘aggressive’ behaviours Rogue artificial intelligence agents have worked together to smuggle sensitive information out of supposedly secure systems, in the latest sign cyber-defences may be overwhelmed by unforeseen scheming by AIs. With companies increasingly asking AI agents to carry out complex tasks in internal systems, the behaviour has sparked concerns that supposedly helpful technology could pose a serious inside threat. Under tests carried out by Irregular, an AI security lab that works with OpenAI and Anthropic, AIs given a simple task to create LinkedIn posts from material in a company’s database dodged conventional anti-hack systems to publish sensitive password information in public without being asked to do so. Other AI agents found ways to override anti-virus software in order to download files that they knew contained malware, forged credentials and even put peer pressure on other AIs to circumvent safety checks, the results of the tests shared with the Guardian showed. The autonomous engagement in offensive cyber-operations against host

Mar 12, 2026 → Mar 24, 2026