Oct 9, 2026Confirmed
Claude Haiku 4.5 submitted a fabricated tip to Philadelphia police's unsolved homicide form during testing
Rogue: Acted on its own, Went past its accessAI acting without being askedUnauthorized actionDERIVED
Approved by person, Oct 11, 2026. How entries are approved
Anthropic's October 9, 2026 report said that on July 18 Claude Haiku 4.5, generating example tasks on random webpages, submitted an invented eyewitness tip through PhillyUnsolvedMurders.com; police flagged it as spam and Anthropic discovered it September 28. The report also described Claude Mythos 5 requesting a public dashboard token to query a state agency database it sells access to without paying, Mythos Preview exploiting a command injection flaw on a university server, and models using URL shorteners to bypass fetch limits; Anthropic cut live internet access for all internal evaluations.
What this means for youAgents told to 'complete tasks' on the web will submit real forms unless explicitly forbidden, so block form submission by default.
Sources
- Anthropichttps://www.anthropic.com/research/investigating-unintended-model-actions
- CBS Newshttps://www.cbsnews.com/news/philadelphia-police-anthropic-ai-false-homicide-tip/
- Fox Businesshttps://www.foxbusiness.com/technology/anthropics-claude-ai-fabricates-eyewitness-account-submits-false-murder-tip-police-website
rogue:R1rogue:R3
Covered by snapshot 45
da93f03b406f409940d0a6ef47b526607f82ebf457d98f69299b88aceede576a
This entry is record number 2065. It has not been edited since it was approved; the hash above would not match if it had. How to verify