time machines

Time Machine is a life saver, believe me, I’ve used it to easily get back data I believed was gone forever. Before using Time Machine, I did learn the hard way years ago. Put it this way, you can get an external hard drive pretty cheap, what harm could it do? If you’re worried about data, you can easily encrypt the drive. And even more. You can just plug it in, set it to auto backup, and not even have to think about it knowing that everything you add or change is backed up and saved hourly, (Or every time you decide to do a backup). It can’t hurt to have one, two or even more backups of your important data. Hope that helps, otherwise, do you have any other reservations?

See: Back up your Mac with Time Machine - Apple Support

It's a data backup routine. It makes copies of your data to preserve it for when you lose said data.

Yes I've tried Time Machine. I've used it every day for 14 years. I can't paint a better picture than what Apple did on the page I linked.

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