Remotely Unlocking macOS FileVault via SSH

2025-09-19

With FileVault enabled in macOS, the data volume is locked and inaccessible during and after boot until password authentication. Since OpenSSH configuration files reside on the data volume, standard SSH authentication is unavailable. However, with Remote Login enabled, SSH password authentication can unlock the data volume remotely. After unlocking, macOS briefly disconnects SSH to mount the volume and start dependent services, then SSH resumes fully. This capability appeared in macOS 26 Tahoe.

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