In a recent report by Wall Street Journal, apps on Facebook are using personal details of users for advertising advantages.  The new report suggests that Facebook does not have a security parameter which checks on apps such as Farmville, Mafia Wars that utilize personal information of users.

Facebook will be releasing new security technology to deal with the flaw. However it is not certain until when the problem will be fixed, as implementing such technology often takes rigorous testing in the real-time environment.

According to the report apps were passing on user ID numbers, which in some consequences does not actually mean to pass on the personal details of users. The ID number is an alpha-numeric number which is generated according to the user account. However the ID does not contain any personal information. Despite the fact, according to the Facebook privacy norms exchange of Facebook user information is deemed illegal.