An alignment assessment of recent cybersecurity incidents
Laurent H. — CEO & Founder CYBERR & HEELR
An alignment assessment of recent cybersecurity incidents
We present an alignment assessment of four incidents in which Claude models gained unauthorized access to real third-party systems. We described three of these incidents on July 30; we identified these after a scan of roughly 141,000 transcripts in which we believed Claude could have obtained internet access during a cyber evaluation. Given the volume of transcripts and our desire to disclose incidents quickly, our scan relied on an agentic search. This missed a set of transcripts that also turned out to have internet access; we identified these in August while assembling transcripts to share with METR. We scanned these transcripts and identified a fourth incident, from January 2026, involving an early version of Claude Opus 4.6. We have notified all affected parties.
https://www.anthropic.com/research/alignment-assessment-cybersecurity-incidents
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