According to a TechCrunch Europe report, the gaping security security on the Facebook site allowed any user to view the live chats of their ‘friends’ with just a few mouse clicks.
From the article:
Using what sounds like a simple trick, a user can also access their friends’ latest pending friend-requests and which friends they share in common. That’s a lot of potentially sensitive information…
…The irony is that the exploit is enabled by they way that Facebook lets you preview your own privacy settings. In other words, a privacy feature contains a flaw that lets others view private information if they are aware of the exploit.
TechCrunch reported the issue to Facebook and the company pulled the live chat feature off line for what was described as “maintenance.”
This YouTube video provides a glimpse of the severity of the problem: