AI models shock UK testers by using fake identities to try to trick developers

AISI said the rogue behaviour was carried out by agents powered by two models - Anthropic's Mythos 5 and OpenAI's GPT-5.6 Sol. AISI said the rogue behaviour was carried out by agents powered by two models - Anthropic's Mythos 5 and OpenAI's GPT-5.6 Sol. Explainer: Should we be alarmed at AI models going rogue in tests? Advanced artificial intelligence models have stunned the UK's AI Security Institute (AISI) by carrying out a hacking campaign against real people during a cybersecurity test. The institute said the incident was unprecedented and involved sending targeted emails to software developers in an attempt to pass a cyber challenge.