With FileVault 2 you can encrypt the contents of your entire drive to help keep your data secure. FileVault 2 uses full disk, XTS-AES 128 encryption to help keep your data secure. Using FileVault 2, you can encrypt the contents of your entire drive.

System Preferences > Security & Privacy > FileVault tab (click the lock to make changes if necessary)

Mac FileVault 2 01

  Choose your recovery method.

Mac FileVault 2 02

Restart your computer.

Mac FileVault 2 03

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