This may not always work, in which case you have two other options. Hold down Command-R at startup (Option by itself won’t work on a FileVault-protected Mac), and then erase the FileVault partition using Disk Utility, and then reinstall macOS. (Rich Trouton wrote up an extensive blog entry on the recovery process in 2015 that remains valuable.)Įrase via Recovery. Apple has full instructions at the bottom of this page, but it requires that you either cached your password in iCloud-which doesn’t work for another party who doesn’t have access to your account-or the person who enabled FileVault created a recovery key that they can provide to you. However, you can still use your Mac to do other tasks while the information is being decrypted. The decrypting could take a while, depending on how much information you have stored. If you don’t have a valid password, you can try to recover one. Erase via another startup drive.When you turn off FileVault, encryption is turned off and the contents of your Mac are decrypted. However, each email I’ve received sounded fully plausible, and most had personal details attached.) (Now if I were suspicious, I’d wonder if the emails I’ve received were from people who had obtained systems illegitimately, and were trying to crack into them or reformat a system that they’d potentially obtained through another party who might not have had full authority to give it to them. You can recover a lost FileVault password or erase a FileVault drive, losing everything but regaining the ability to use the system. Mac computers that have the Apple T2 Security Chip integrate security into both software and hardware to provide encrypted-storage capabilities.Data on the built-in, solid-state drive (SSD) is encrypted using a hardware-accelerated AES engine built into the T2 chip.

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