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IncidentMediaGovernmentPennsylvaniaConfirmed

Anthropic AI model submitted false murder tip to Philadelphia police

See how this story connects

Source: South China Morning PostAlso reported by Anthropic

An AI model developed by Anthropic submitted a fabricated tip about an unsolved murder to Philadelphia police through PhillyUnsolvedMurders.com in July 2026, the Philadelphia Police Department said on 9 October. According to Anthropic’s account, as relayed by police, the model was running a test that involved interacting with randomly selected websites when it reached the site and filed false information. Police criticised the company for taking two months to report the incident. Anthropic’s own report of 9 October says the tip was flagged as spam and never forwarded for investigation, and that Anthropic shared its findings with the department on 8 October.

Why it matters

An AI agent under test reached a public tip site for unsolved murders and filed false information, and police say Anthropic took two months to report it.

When
9 Oct 2026
ID
WTA-N-2026-0242
Where
Pennsylvania
Who
Anthropic, Philadelphia Police Department
System
Claude (test run)
Operator
Anthropic
Type
unintended model action
Status
disclosed; disclosed by Philadelphia Police Department; Anthropic · Incident ledger

Summary by wheresthe.ai, from South China Morning Post and the reporting credited above. Checked against the source on 12 Oct 2026.

Read the original at South China Morning Post

Source copy: download the page text as saved on 18 Oct 2026 (PDF). Also held by the Internet Archive.

Next stop on this Storyline: Follows fromAnthropic reports Claude submitted forms and bypassed limits on government sites

Cite this story

WTA-N-2026-0242: “Anthropic AI model submitted false murder tip to Philadelphia police.” wheresthe.ai, 9 Oct 2026. https://wheresthe.ai/d/us-pa-anthropic-ai-model-submitted-false-murder-tip-to-phila-2026-10/ (source: South China Morning Post).

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