Recently I have been running into worse and worse scenarios where peoples hard drive data or cell phones have been destroyed before they got it backed up onto a computer or USB drive. In this video I underline best practices for personal data retention.
The first and biggest thing you should know is that data on your PC and cell phone are not a completely safe method of storing this data. Many, many things could happen to destroy the data and pictures saved within.
Always save data on USB drives or hard drives off-site. I cant tell you enough how important it is to keep an off site backup