This article explains how social media platforms gather information about users: https://www.google.com/amp/amp.timeinc.net/fortune/2018/03/21/facebook-personal-data-cambridge-analytica _  From the very beginning a red flag raises in my head as to how gathering information based off someone's birth day, hometown and IP address without express knowledge could be legal. But every Facebook user gives it up willingly. Hackers can do anything  without limits with an IP address alone. Information is not safe unless the person who possesses is safe with it.