The Office of the Privacy Commissioner in Canada has introduced a graphic novel designed to help teens and youth use the Internet safely with mobile devices. If you haven't read it, I highly recommend it. It is an easy read and it clearly describes some good, basic data security habits.
The graphic novel (Adobe PDF - 4.5 M Bytes) is good for youth (and their parents) everywhere, and not just in Canada. The skills needed to safely use mobile devices and maintain privacy are universal.