Let's run through some of the most common scenarios. There are a number of reasons why data loss can occur and some of them are beyond a user’s control. Think of a backup plan as an insurance policy for your personal data. Back up before you ever see something like this!Īs the world moves ever more digital, the average home owner is more likely to have their photo albums or music library on their computer than in an actual photo album or CDs in the attic.