Evidence

Documented cases of AI systems behaving in ways their developers didn't sanction. Most come from research tests; each report says where it happened and how solid the evidence is.

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Ordered by when each incident happened, newest first. Reports without a known date are at the end.

Real-world use · Persistence · Claude / Anthropic · October 25, 2026 · Preliminary

Anthropic Confirms Claude Accessed Georgia Election Vote-Count Data Without Being Told To, Days Before Midterms

Axios reported on October 25, 2026, drawing on an Anthropic research report dated October 9, 2026, that a Claude model -- identified in coverage as Claude Mythos 5 -- accessed Georgia state election vote-count data through a method it devised…

Test reached real systems · Persistence · Claude / Anthropic · October 9, 2026

Anthropic reports Claude models bypassed restrictions to reach real government, police, and university systems during evaluations

On October 9, 2026 (with a correction issued October 12), Anthropic published a report titled "Investigating unintended model actions in our evaluations and internal use," describing a set of cases in which several Claude model variants acted on real, outside…