One of the basic rules of IT security is, as soon as an application or platform becomes popular, criminals are going to target it for malicious purposes.  FaceBook is no exception:  it’s recently been hit with a several rogue applications that try to lure users to phishing sites.

The apps themselves look innocuous, but if installed on a user’s account can set off a chain of events designed to lure friends to phishing sites.  If a friend tries to access the app, it phishes for their username and password, which is then stored and forwarded to the gang behind the app. 

So if you’re using FaceBook, be careful about apps forwarded to you by friends:  they may not have intended to send it to you, and it may not be friendly.  And if the app behaves suspiciously, asking you for additional details such as your username or password, then it probably is suspect.