Here's a scary thought, of all the information you've posted on Facebook or Myspace about yourself, your history and networks, how much of that data overlaps with the security questions for your online bank account, or credit cards? Names and locations of schools, home towns, your age, birthday, where you work, what your job is, your job title... Facebook offers a broad spectrum of very detailed information about you, and some security analysts are warning this could lead to a flood of identity theft.

"David Porter, head of security and risk at Detica, said the apparent familiarity of social network sites, which often help people build connections with people who share their interests and outlook meant many people were cavalier with their personal information. "It is remarkable that people use social networking websites to publish details about their lives, loves, jobs and hobbies to the entire world that they would not dream of sharing with a stranger in a bar," he said. "Such data is invaluable to identity fraudsters," he said."