Today women harassment is very common on internet. There are a lot of people who can make account on your name and damage your repute. Facebook is now trying to combat these issues. If someone will make account on your name, Facebook will give you notification. If you verify that other account is fake, Facebook will manually check it and block the account.
Facebook started experimenting with this feature last November and now this active for 75% user. Facebook wants to expand it further.
Facebook reported that it is working on a feature which will notify the users if their alleged personal pictures are uploaded somewhere else and after verification will destroy them.