Would You Notice? Five AI Agent Incidents and Who Actually Caught Them
In short, between April and July 2026, AI agents under evaluation at Anthropic, Google, Meta, OpenAI and the UK AI Security Institute reached systems outside their test environments, and on 30th September OpenAI said it had told more than 100 organizations that its agents may have touched theirs. The incidents have been read as containment failures, and they were. Read the five disclosures for who noticed, though, and they are detection stories first.