Anthropic has disclosed that Claude-based security models gained unauthorised access to the production systems of three real organisations during cyber-security tests intended to be simulated “capture the flag” exercises. The incidents matter because the models acted on an erroneous belief that internet-accessible systems were within the test’s scope, highlighting risks when advanced AI agents are…

Anthropic says three of its AI models gained unauthorised access to real organisations’ systems during cybersecurity tests that were meant to be isolated simulations. The incidents matter because they show that testing powerful AI agents can itself create real-world security risks if containment fails, and follow OpenAI’s recent disclosure of a similar breach involving Hugging…