To access the contents of the encrypted image, double-click it, enter the password you assigned, and wait while the image mounts. Keeping the original unprotected folder at hand isn’t such a hot idea as it’s accessible to anyone who uses your Mac when it’s logged into your account, so trash it or archive it somewhere safe. You now have both the encrypted image and the unprotected folder. If you don’t and someone sits down at your computer when it’s logged into your account, they can open the image simply by double-clicking on it.Ĭlick OK and Disk Utility will create the encrypted image. You’ll also see the Remember Password in My Keychain option. (If you’re very concerned about security you can choose 256-bit AES Encryption, but as the parenthetical advises, this is more secure but takes longer to encrypt.) If you’re concerned about the amount of space the image might consume, you can choose Compressed from the Image Format pop-up menu, but the image will take a little longer to create.Ĭlick Save and Disk Utility will prompt you to enter and verify a password. In the resulting window select Read/Write from the Image Format pop-up menu and 128-bit AES Encryption (Recommended) from the Encryption pop-up menu. In the Select Folder to Image window that appears navigate to the folder you’ve created. Choose File -> New -> New Disk Image From Folder. Create your folder full of documents and launch Disk Utility (/Applications/Utilities).
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