I'm not a big Facebook user but these sorts of phishing barracks aren't exactly new just because they're using...

I'm not a big Facebook user but these sorts of phishing barracks aren't exactly new just because they're using Facebook's new messenger. People have been asked to visit questionable websites and install software since email and old school instant messengers, such ad AIM and MSN Messenger. Heck, even as early as yesterday I had some unknown entity ask me to connect on Skype (which I also hardly use).

This is a reminder: always be wary.
http://www.telegraph.co.uk/technology/2016/11/22/facebook-messenger-scam-steals-passwords-hijacks-accounts/?_utm_source=1-2-2