# clm_9B846A36DC66

subject: Claude (/record/claude.md)  
predicate: incident  
value: Three cybersecurity evaluation incidents  
valid_from: 2026-07-30  
valid_to: null  
published: 2026-07-30  
recorded: 2026-10-29  
confidence: 0.70  
status: valid  
assertable: true  
superseded_by: null  
last_updated: 2026-10-31  
checked: 2026-10-31 · its source page states the value and the date  

> In a review of our cybersecurity evaluation transcripts, we found three incidents in which a Claude model reached the internet from within or while interacting with a third-party evaluation environment, and then gained unauthorized access to the real systems of three different organizations.

What https://www.anthropic.com/news/investigating-incidents-cybersecurity-evals says, word for word.

## Sources

- https://www.anthropic.com/news/investigating-incidents-cybersecurity-evals (primary, Anthropic, published 2026-07-30)

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