For Time Machine backups I'm using Time Capsule, but under “Disk Utility” I'm seeing the following: Time Machine Backups Disk Image Volume • Mac OS Extended (Case-sensitive, Journaled) BUT . . . under the “Time Machine” app, I'm seeing the following: Xxx GB of 2 TB available, encrypted so it looks like the Time Machine backups which are sparse bundles are encrypted?? But how do I encrypt the overall disk inside Time Capsule? Normally, I would do this by going into Finder and right-click "encrypt disk" or in Disk Utility and format it with "encryption", but we are supposed to manage Time Capsule's disk using Airport Utility, according to Apple. I didn't format 'Time Machine Backups' to "Mac OS Extended (Case-sensitive, Journaled)", I must assume Airport Utility did this when I used Airport Utility to set up ("format") Time Capsule's disk.