With increase in popularity, Facebook is now common playground for spammers. Be aware of this Facebook chat spams which is even more dangerous with Facebook video hijacks. One golder rule on Facebook that you should always remember is:

Don’t allow any suspicious third party apps, even if they seems very lucrative

The new Facebook chat spams sends auto message over chat with an infected url of app (for chain reaction of infection) to all of your online friends.

Pop Chat with infect link of Facebook Chat Spams

Don’t allow below apps or you will be auto included in the infection list