Data loss can happen in many ways - including from natural disasters, theft, and accidental deletion. However, one of the most common causes is physical hardware failure.
Most likely, all of your data is stored on a PCs hard drive. That hard drive will not live forever. It will eventually die. It might happen gradually, but most likely it will happen suddenly. The hard drive crashes without warning and you lose all of your data.
Another common cause for data loss is accidental deletion. Have you ever deleted a file, then realized later that you really needed it? Has someone mistakenly deleted your files? These are common issues, and everyone is at risk.
In addition, data loss can result from virus attacks. Computer viruses will delete or corrupt files on your computer; that's why
Virus Protection
is just as important.