# Claude Code Finds Hidden Crypto Miner Using 1,175% CPU on Mac

> Source: <https://cyberupdates365.com/claude-code-hidden-crypto-miner/>
> Published: 2026-10-20 03:22:55+00:00

Claude Code unexpectedly uncovered an unauthorized XMRig miner consuming approximately 1,175% CPU while building a Mac temperature-monitoring app. The incident highlights macOS persistence risks and the benefits and limits of AI-assisted troubleshooting.

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