FileVault
FileVault enables you to encrypt your Home folder using Advanced Encryption Standard 128-bit (AES-128) encryption. This makes it virtually impossible for any hacker to access the files in your Home folder. Best of all, it’s all done quickly and transparently—files are decrypted automatically when you log in and encrypted again when you log out.
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I say “virtually impossible” above because I don’t believe that anything is really impossible. But this comes pretty close—certainly close enough for most people!
If you’re worried about someone recovering one of your deleted files, use the Secure Empty Trash command when you empty the Trash. I tell you more about deleting files in Chapter 3.
To enable FileVault for the computer
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