A lot of computer security is based on trust. Your devices verify that you are, indeed, an authorized user, through the use of user names and passwords. And your devices trust services and servers, through a series of certificates and “trusted third parties” who work through a cascading system of verification and authentication.
Here’s why Time Machine won’t work with your external drive
Mac users relying on Time Machine went through a rough transition a few years ago when Apple migrated away from its...