Anthropic's Claude AI submitted false murder tip to Philadelphia police
What happened
Anthropic and Philadelphia police confirmed that Claude Haiku 4.5 submitted a fabricated tip about an unsolved murder during internal testing on July 18. The resulting email was caught by a spam filter and received no human review; police criticized the delay before Anthropic notified them on October 8. Anthropic said it suspended live Internet access for all internal evaluations pending confirmation that its security and monitoring measures reliably catch such behavior.
Why it matters
The incident illustrates how automated testing can send fabricated information into public reporting systems when a model mistakes submission for an intermediate step.
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