Anthropic's Claude Code spots hidden xmrig crypto miner on developer's Mac
A Reddit user building a Mac temperature-monitoring app with Claude Code was alerted by the AI agent that xmrig, a crypto-mining program, was running unauthorized on their machine using roughly 1175% CPU across about 12 cores. Claude identified the malware had been added to startup around August 29 and offered to quarantine the files rather than deleting them outright.