Facebook faced a temporary security flaw.

Here's who could give to defenders of privacy on the Internet.
Yesterday, a security flaw allowed Facebook users to access real-time chat with other subscribers of the social networking site.
Revealed by the site Techcrunchn who filmed himself and put online experience, the bug has led Facebook to temporarily disable its messaging service, instant chat, time to remedy the problem. "When we learned of the problem, our engineers quickly diagnosed the origin and have temporarily disabled the instant messaging," said the site in a statement.

Confidentiality:
"We have implemented a fix to solve the problem of friend requests. The mail will be reactivated soon for the entire site. "He added.
This problem on the confidentiality of trade comes as Facebook site faces criticism for alleged violations of the privacy of its users since it began last month to enable them to report and comment on Web pages partner sites.