Go to the App Store on your Mac and search for "Encrypto". Luckily, there is a fantastic app called Encrypto which does a fine job of password-protecting individual files with AES-256 encryption. While it's to encrypt some files such as PDFs (as we show in the next section), macOS does not offer a general way of encrypting individual files, meaning you will need to rely on a third-party app for most of them. How to encrypt files on Mac using Encrypto It leaves the original folder without encryption or a password so the idea is that you will delete the original in favor of the new disk image.Īlternatively, you can use third party software to encrypt individual files, which we'll cover next. If you’re already on macOS Big Sur you can re-download the installer with these instructions) From the command line, create the disk image DMG file destination and temporary volume by issuing the following command: hdiutil create -o /tmp/MacOSBigSur -size 16500m -volname MacOSBigSur -layout SPUD -fs HFS+J. As with the encryption process, this usually takes place in the background as the Mac is being used, and the Mac must be plugged into AC power. Now give the Mac time to decrypt the startup disk. If you don't want to encrypt your Mac's entire startup disk, you can learn how to password protect a folder on Mac instead – an action which also encrypts its content.īe aware, though, that doing this creates a new folder disk image. Click the lock () and enter an administrator name and password.
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