The online security firm Symantec has come up with details of facebook applications leaking personal informations to third party companies. There are more than 500 million users in facebook, that uses around 100000plus facebook applications. About 200 million users use these applications also. If you are one among them, then please be careful.
These applications ask for the permission to access their private informations first. Users blindly allows them to access it. The private information includes username, email address, date of birth, address of location, photos, friends list and so on. These applications often appear fancy to the users, and mostly get their link from friends. So they blindly clicks the OK button when asked for the permission to access personal information. But understand that, your friends also might have got it in the same way and may not even tried it.
The Wall Street Journal reports that all of the 10 most popular Facebook apps are guilty of giving away user IDs to third parties, specifically Internet research and advertising companies. These include Zynga’s FarmVille, Texas HoldEm Poker and FrontierVille.
Facebook guarantees that knowing the username will not allow applications to access the personnel information. But it is quiet clear that knowing the username can easily reveal the user's name, phone number etc. At least the applications could take away your name and friends list even if you put the maximum possible privacy settings. So be careful about these type of applications. Think twice and look for what all personnel information they are asking for.