Choose the Encryption option 128-bit AES to encrypt the image.Select the Size of the image file from the drop-down menu.Enter a name in the Name field. This name displays when the disk image file is opened (mounted).This name is used for the disk image (.dmg) file. Choose File, then New, then Blank Disk Image.Note: You can also click the New Image button and go to Creating a New Blank Image section. Click Go, Applications, Utilities, and then click to open Disk Utility.An encrypted disk image cannot be used as your home directory.Ĭomplete the following steps to create an encrypted disk image for your version of macOS v.There is no way to change the password on an image file.Backup programs will need to back up the entire image if any files within it have changed, since the image appears as a single file.Please be aware of the following when using an encrypted disk image: Getting Startedįiles can be moved to or from an encrypted disk image as easily as you can from a non-encrypted disk image. Important: If you forget the password to your encrypted disk image, the data on that disk image cannot be recovered.
FORGOT DMG PASSWORD MAC HOW TO
It may be copied to or created on network volumes or removable media, including Zip drives, USB flash media, or FireWire hard drives. Each encrypted disk image is protected by a password. The following document explains how to create, mount, and unmount an encrypted disk image.
Encryption means it requires a password to open or become available (to "mount"). An encrypted disk image acts as secure storage space and can be used like any other disk image file. The Disk Copy or Disk Utility feature for macOS can be used to create an encrypted disk image.
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