Catfishing is when in social media they steal an identity and fake they are someone else. A lot of people have been victims of this people. Some of them have been lucky and found out, before getting hurt, but there are others not so lucky that have fallen in the lies of this people. There are cases where the victim falls in love with ths people and has given them money, or even worse been kidnap. We have to take precaucions and don’t accept or be fooled by any user you don’t know. If you don’t know the user don’t give any of your personal information. In your profil make sure everything is private or that the information you are displaying is alright for you.
Here is an example:
Tc2017-security 