•Do not ever give out your password to a third party program. Facebook is home to hundreds of different games that incorporate the use of the person’s contacts as a way to get ahead in the game. For example, Farmville, the most popular one right now, requires that you have “neighbors” in the game to be able to avail of certain things. The game, then, has to access the friends list of the user playing the game. What Facebook security guidelines state is that these third party programs should not be asking for the password at all, so any game that asks you to do so is potentially dangerous and should be reported immediately.
•Do not be too specific with the information you post. Although you can fully control who is able to view your profile, it is still very possible for people to see it through different means. Do not post anything too personal.
•Consider Facebook as an open platform, no matter how private you make your settings. For your own Facebook security, you must always consider that it is still on the Internet, and things on the World Wide Web still have a way of getting out. One perfect way to be able to secure your Internet persona is to be a responsible user. Do not treat Facebook like it is the private space of your own home. This is the mistake of most users. Be smart in all your Internet dealings, Facebook or otherwise
Quelle: astalavista.com/blog
