![]() The backup is protected by three security questions. You can choose to backup your password on Apple server. To use FileVault safely, you must always remember your password correctly. To access the system, the user must key in the password to unlock and decrypt it. ![]() When the Mac is shut down, FileVault encrypts it and locks it with a password. First introduced in 2003, the scheme encrypts and decrypts Mac volumes on-the-fly. FileVault is a full-disk encryption scheme that uses XTS-AES 128 encryption to help prevent unauthorized access to your Mac. How to Encrypt Mac HDD and External USB in Mac OS X El Capitan using FileVault ![]() How far would you like to go to safeguard your Mac from unauthorised access? If the answer to that question is, as far as it takes, you’d probably be interested in knowing about FileVault – a highly advanced encryption mechanism that allows you to apply an extra layer of security to your Mac HDD as well as Mac-based external USBs. Stay with us as we cover the salient features of File Vault and describe the process that you can use to protect your internal and external hard drives with this utility.
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