I think you would have to sue the party that did the hacking (ie anthropics servers) not the party that benefited, unless Claude used his computer in yolo mode to hack the gym, in which case I think I would find it hard to blame anthropic.
Earlier this year, Andrew, who works for an Australian company that sells AI products to businesses, began experimenting with OpenClaw, a popular AI agent software that he used Anthropic's Claude AI service to run.
AI agents combine a chatbot's ability to answer questions with tools that let them access the internet, email, credit cards, as well as planning and carrying out multi-step tasks.
He decided to use the AI agent to book the class for him.
> unless Claude used his computer in yolo mode to hack the gym
https://www.abc.net.au/news/2026-08-10/ai-assistant-hacks-gy...
He YOLO'ed his own computer with OpenClaw.