To exploit this susceptibility, people have to operate "under a special" features of the site lets members preview profile of them look like friends do with each. This bug be "in a short time," the company said. Now function chat worked again.

First bug and posted a video to show how this error can be broken like. Upon getting the report on the problem, our engineers have detected it rapidly and temporarily stop the chat feature, according to source of Facebook. We worked quickly to fix this issue, make sure that once the bug has been reported to us; a fast solution will be found and executed."

This error was made at a time when worries about the privacy of Facebook has heated up, after the company launched features that allow 3rd-party website data mining of user documents.