TechCrunch: an Anthropic AI model sent a false homicide tip to Philadelphia police

Evidence record

October 9 reporting reproducing a Philadelphia Police Department emailed statement; attributes exact dates of submission, discovery, notification and police response. The original full police release was not separately retrieved.

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Claim-level citations (3)

• supportsClaude crossed real-website boundaries in evaluations and internal tasks: According to the Philadelphia Police Department statement reproduced by TechCrunch on October 9, an Anthropic model submitted a fabricated homicide tip at 11:27 p.m. Philadelphia local time on July 18, 2026; Anthropic found it on September 28, notified police on October 7 and met with the department on October 8.

  Police Department emailed statement reproduced in TechCrunch: July 18 11:27 p.m. submission, September 28 discovery, Wednesday notification and Thursday meeting

• supportsClaude crossed real-website boundaries in evaluations and internal tasks: Philadelphia police said the fabricated submission was filtered as spam before investigative circulation; the department found no indication of unauthorized system access or compromise of its data and criticized the long detection and reporting delay.

  Police Department statement and spokesperson comments: spam routing, investigation impact, no indication of police-system or data compromise and criticism of the delay

• supportsClaude crossed real-website boundaries in evaluations and internal tasks: The police department account reproduced October 9 says Anthropic notified it on October 7, while Anthropic appended a note to its October 9 report saying it shared the finding with the department on October 8. The accessible sources do not resolve whether these refer to distinct contacts.

  Police Department statement reproduced in October 9 TechCrunch report: notified the department on October 7