If you decide you no longer wish to encrypt your startup disk, you can turn off FileVault: The utility uses XTS-AES-128 encryption with a 256-bit key to help prevent unauthorized access to the information on your startup disk.
Or you could use FileVault (for macOS Lion or later) to encrypt your Mac’s entire drive, making it accessible only when you log into your user account. Only you and those you provide with your password can view the data. You must enter a password for the new encrypted disk image.
Select your encryption method and click Save. Go to the File menu and choose New > “Disk Image from Folder…” (or type shift-command-N).Ĭhoose the folder you want to encrypt, and then click Image. To encrypt data on your Mac, go to Finder > Applications > Utilities folder. To read an encrypted file, you must have access to a secret key or password that enables you to decrypt it. With macOS, it’s (relatively) easy to encrypt files - that is, you can translate your data into a secret code so others can’t view it without your permission.Įncryption is the best way to ensure security and peace of mind.
