I recently realised that Time Machine doesn't automatically encrypt when you have FileVault on. I want to remedy this, so I'm trying to enable encryption, in some way, on my TM disk. The disk is already in use, and I don't want to erase it and start agin, unless I absolutely have to. Preferred option: using the inbuilt FileVault. I tried this, but right clicking wouldn't work. It says I can only do it on a partition, not a full disk. Is there anyway round this? Potential option: using VeraCrypt. I use this for encrypting anything other than system disks. Can I use this with time machine? Or will the fact of needing to enter passwords at various time make it impractical? Or using two encryption systems is not good somehow? I'm at a loss with searching on this subject, so I'm turning too trusty macrumours for the answers.