Claude Opus 5 wipes a Windows profile after mistaking `/c/Users` for a backup path

A Claude Opus 5 session reportedly erased an entire Windows user profile after misreading a Unix-style `/c/Users/...` path and issuing `rm -rf` against it. The incident highlights how quickly an AI coding agent can turn a routine backup task into irreversible data loss when it has unrestricted filesystem access. Source

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