For example, you could accidentally delete your bookmarks on one of your Chrome browsers. Accidents and Bugs with Syncing: You may accidentally delete or overwrite your data, or a bug with a service could result in your data being erased.Having a backup is a good idea for a few reasons: Having backups of your data is always a good idea, whether that data is stored in the cloud or on your computer. This is more than many users do to protect their personal data - many people tend to ignore backups until they lose their precious data.īut you shouldn’t ignore backups entirely just because your data is in the cloud. Service providers generally back up your data to multiple locations. Your emails are probably safer in Gmail or than they are on your hard drive.