Regularly backing up your Mac with Time Machine can prevent data loss and allow you to restore earlier versions of files.

Time Machine is Apple's backup system that automatically saves your Mac's files. Here's how to use the macOS file protection feature.

We also explain How to back up a Mac and How to use Time Machine and how to restore from a Time Machine backup elsewhere.

It can restore your Mac to a specific time, including its settings and data. If you have backed up the deleted files in Time Machine, you can restore them after emptying the Trash bin.

If you deleted someone’s phone number and need to recover it (or if you deleted an entire contact), you can use Time Machine to backtrack and restore the information.

Learn the pros and cons of Time Machine, Active Backup, and Synology Drive for Mac backups. Protect your data with Synology NAS. Using the most ...

There are some good deals on 4TB SSDs for Prime Day. I use a Samsung T9 for my Time Machine with no issues (so far). That said, I haven't had a need to restore anything.