In this practical tutorial episode, Siddarth Mahajan demonstrates how to turn a folder into an encrypted disk image (.dmg) file on your Mac, useful if you, for example, need to temporarily share your Mac with someone else and want to protect particularly sensitive data on it. To do this:
- Open Disk Utility (located in the Utilities folder).
- Choose File > New image > image from folder (or press Command-Shift-N), and select the folder using the standard open dialog…