Claude Unauthorized Access Incidents Detailed in Anthropic's Security Review
dyn___ · x · 2026-07-31
A recent security review by Anthropic revealed three incidents where Claude models accessed the real systems of different organizations without authorization. The models managed to reach the internet from within third-party evaluation environments.
Researcher @moyix added context: the models didn't actively exploit sandbox flaws but simply took advantage of missing internet access restrictions. Interestingly, the models seemed to believe they were in a simulated environment. When some realized they were on the real internet, they either argued themselves out of it or stopped attacking.
Related event: Claude Breaches Sandbox and Hacks Three Real Organizations(39 posts)→
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