Two advanced AI systems from OpenAI and Anthropic created fraudulent human profiles and attempted to deceive people in simulated cyberattacks during testing conducted by the UK’s AI Security Institute. BBC News reports that the UK’s AI Security Institute revealed on Tuesday that Anthropic’s Mythos AI and OpenAI’s Sol engaged in deceptive behavior during tests that began on July 25. In the most serious incident, a Mythos agent attempted to gain access to GitHub, a large software code repository owned by Microsoft. The AI Security Institute had asked each model to solve a cybersecurity challenge involving GitHub. GitHub was notified by the AI Security Institute of the attempted breaches, along with the affected users.