Anthropic, the American artificial intelligence research and safety company behind the Claude family of large language models, said it disrupted several clusters of financially motivated hackers believed to be affiliated with ShinyHunters, one of the most prolific data-extortion collectives currently operating. The AI firm said it found out that they had used Claude to dramatically accelerate large-scale data theft and extortion campaigns.

Anthropic now says attacks during security tests exposed model behavior failures, after initially emphasizing errors in testing infra.

Anthropic on Thursday (Sep 10) said it had disrupted several alleged malicious uses of its Claude models over the past eight months, including a suspected Russia-linked cyber…