If you have valuable data on your mobile device, I recommend synchronizing your device with a computer and then as an added measure, either print the data or make an additional copy on other media such as USB drives. Some vendors also allow you to upload data onto their equipment. Regardless of where the data is stored, it should be in a separate location that you can access. For example, if you are storing your data on a PC, copy your data on a regularly to another device such as USB drives or some other media.
Another issue to address is security. Data is vulnerable if it falls into the wrong hands. In order to avoid security issues, it's best to encrypt your data. For instance, if you are backing your data up to a PC, you can encrypt or password-protect the directory where your data is stored. Regardless of what way you back up and encrypt your data, make sure there is also an additional backup device that contains your data.
This was first published in February 2010