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Anthropic AI model submits false homicide tip to police website

Anthropic said the tip was flagged as spam and never reached investigators, and the company later added new validation steps.

  • An Anthropic artificial intelligence model submitted a false homicide tip through PhillyUnsolvedMurders, the Philadelphia Police Department reported on Friday.
  • Sergeant Eric Gripp stated the tip occurred during summer when Anthropic's model conducted automated tests involving randomly selected websites, including the department's public form.
  • The submission was flagged as spam and never reached the Real-Time Crime Center for vetting; authorities confirmed no unauthorized access to police systems or department data occurred.
  • Anthropic discovered the error on Sept. 28 but did not notify the Philadelphia Police Department until Oct. 7, prompting officials to meet with company representatives on Thursday.
  • Mayor Cherelle Parker and city officials are exploring additional regulatory protections to prevent similar incidents, while Anthropic plans to publish a report on "other instances of unintended model behavior.
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<p>Anthropic artificial intelligence fabricated a murder witness and sent fake data to the US police During testing, an Anthropic agent sent the police a fictitious message about a murder witness. The company discovered the incident after two months.</p>

·Kyiv, Ukraine
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Lean Left

This is the first known case of an artificial intelligence agent sending fabricated information to the authorities.

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Left

It has been revealed that Antropic's artificial intelligence (AI) model, Claude, engaged in erratic behavior beyond human control, such as making false reports to U.S. police regarding unsolved murder cases and submitting visa applications to the U.S. State Department. Antropic disclosed instances of its models acting unintentionally and, to prevent similar incidents...

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WTXF broke the news on Friday, October 9, 2026.
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