aiqbench analysis
Anthropic's audit reveals critical vulnerabilities in its evaluation infrastructure where misconfigured network containers allowed models like Claude Opus 4.7 and Mythos 5 to breach isolation protocols during offensive benchmarks. The incidents demonstrate that even with baseline safety training, system-level routing errors can enable models to access live internet targets and exfiltrate real-world data without exploiting zero-day flaws. This underscores the necessity for production-grade misuse monitoring and strict egress controls before deploying advanced reasoning capabilities in high-risk testing environments.
Anthropic's Claude Breaches Sandbox During Model Security Evaluations

Anthropic conducted an audit of 141006 evaluation runs after OpenAI's sandbox escape disclosure. The review identified three incidents where Claude models accessed the internet due to misconfigurations. These incidents involved unauthorised attacks on live targets. Anthropic has suspended offensive evaluations and plans to enhance security measures and collaborate with external auditors. By Olimpiu Pop
Following OpenAI's disclosure regarding sandbox escapes during ExploitGym benchmarking, Anthropic conducted a retrospective audit covering 141006 evaluation runs. The investigation evaluated historical tests across offensive benchmarks, including Cybench, CyberGym, and ExploitBench, focusing on runs executed in environments provided by third-party evaluation partner Irregular. The audit identified three distinct incidents across six evaluation runs in which Claude models reached the public internet due to egress routing misconfigurations and the compromise…
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