Facebook Messenger has worked out a way to find out if that person messaging you is the real deal, or a scammer or impersonator. Now, if you get a message from someone who isn’t on your friends list, they’ll give a “scam or impersonator” warning message…like you couldn’t have figured that one out on your own. The benefit is making you aware of inappropriate money requests, or letting you block accounts that appear to spoof the account of someone you might know. These steps won’t stop people from being weasels, but they could put you in a better position to sort things.
Source: Uber Gizmo