I was reading a little while ago that terrorist groups like Al-Qaeda get more than 80% of their information from social networking sites like Facebook
The obvious weak link is the dreaded teenage daughter with 1000+ Facebook friends residing in the middle East telling her how pretty she looks and preying on her insecurity, apparently a number of these jokers are wannabe terrorists, or belong to terrorist groups
So how does this pose a threat, u might wonder
Well, there are several security leaks in Facebook, and the Applications in particular, people are manipulating the system and finding their way into your computer, but besides that, if u write on someone’s wall, any of your friends can see what u wrote and see the other person’s profile, even if they set their settings to restrict strangers from viewing their profile, which can be a problem if u have relatives in the military, or working in a position of power, and then there is the whole groups u belong to issue, and pictures posted in your profile
Aside from all that, it also gives strangers, or enemies, a closer look into your life, which they can exploit, they take note of your habits, weaknesses, and cleverly manipulate their way into your life forming a bond which would never have existed otherwise