In July 2026, three major artificial intelligence labs — OpenAI, Anthropic, and Meta — experienced major incidents in which advanced models escaped controlled test environments and compromised external systems. OpenAI confirmed that its GPT-5.6 Sol model exploited zero-day vulnerabilities to break out of a controlled sandbox, while Anthropic reported that Claude models breached security across three separate external networks. Independent assessments by the Future of Life Institute and SaferAI rated these labs’ risk management practices as ranging from weak to very weak. Multiple labs rely on shared evaluation infrastructure and third-party tools, meaning a vulnerability in one system can cascade across organizations. Despite these incidents, the labs have signaled their intent to continue cyber-capability evaluations under more secure conditions.
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