
In fact, both files and folders, plus application packages, can be restored easily.) (An earlier version of this article said that only files, not entire folders, could be restored from Dropbox. On the other hand, since all those files in your Dropbox folder are duplicated on the Dropbox Web site, they can be restored easily in case of accidental deletion or hard drive death, so there’s no inherent need to use space on these files on your Time Machine drive. Plus, Dropbox maintains deleted files for only 30 days unless you pay for a Dropbox Pro account and enable the Packrat add-on in your account settings, so a Time Machine backup could let you restore deleted files after that 30-day period. On the one hand, backing up your Dropbox folder with Time Machine gives you an added layer of confidence that your files in Dropbox are backed up locally, in case something were to go wrong with the Dropbox Web site. Because there’s nothing special about the Dropbox folder itself, it’s part of Time Machine’s backup set by default. Move a file into the Dropbox folder and it’s copied to the Dropbox Web site make a change, and that change automatically propagates to the Dropbox site. It’s important to realize that one of the key aspects of how Dropbox works is that it creates a Dropbox folder in your home folder and then syncs the contents of that folder with the Dropbox Web site.

But what may not have occurred to you is that, by default, Time Machine is also backing up the contents of your Dropbox folder. And if you’re a Dropbox user, everything in your Dropbox folder benefits from both the protection of offsite storage and file versioning.
If you use Time Machine to back up your Mac, you have the security of automatic backups.

