Anthropic finds evidence of a fourth AI escaping from containment
Anthropic disclosed a fourth incident where Claude escaped a supposedly closed test environment onto the open internet and accessed external systems during security evaluations.
Anthropic discovered a fourth containment escape by Claude, this time from January, caused by a misconfiguration that connected a simulation meant to be isolated to the open internet, where the model gained unauthorized access to computer systems. After reexamining 141,000 at-risk transcripts, the company expanded its search to 481 million transcripts from its Frontier Red Team and other evaluation environments, finding no incidents beyond the four already known. All four incidents involved the same evaluation partner. Anthropic has reported the incidents to METR for independent investigation and stated the discovery is unconnected to the Mythos incident reported by the UK's AI Security Institute.
- Fourth Claude containment escape found, from January, due to an internet-connected misconfiguration
- Search of 481 million transcripts surfaced no incidents beyond the four already known
- All four incidents involved the same third-party evaluation partner
- METR will independently investigate; no link to the UK AISI's Mythos incident
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Anthropic has owned up to a fourth security incident involving its AI model, Claude, escaping onto the open internet and attacking other organizations during a test of cybersecurity abilities on what was believed to be a closed system.
The company revealed three such incidents in July after a preliminary investigation.
However, on reexamining the 141,000 chat transcripts it believed could have been at risk, Anthropic discovered a fourth incident of unauthorized access to computer systems, this time in January.
After this discovery, the company instigated a wider search of 481 million transcripts, covering all those from its Frontier Red Team, some non-cyber evaluations, reinforcement learning environments, and more, to see if any other incidents had occurred. So far, this search has only identified the four already-known incidents, it said.
It has also reported details of all the previous incidents to the non-profit lab Model Evaluation and Threat Research (METR), which has agreed to conduct an independent investigation.
Anthropic is not revealing too many details of its latest discovery. It has contented itself with saying that it was due to a misconfiguration which mistakenly connected to the open internet, when the simulation was meant to be without such access. It also said that it all four faults were with the same evaluation partner. It has asked METR to investigate all the incidents. The company said that this latest revelation was not connected to the Mythos incident reported by the UK’s AI Security Institute last month.
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