I don´t know how Facebook or Whatsapp keep safe my personal information, in fact I doubt it, but my limit is as long as they do not share my post and photos.
My favorite social media is Whatsapp, because is the most effective means of communication, it´s simple, there are the precise ones and this is not all this Facebook device.
Personally don´t like internet, because is how the secondary TV show, included your tastes, humor, making sure you´re going to like it, it´s like having a television with channels that you only like, without showing a contraste, making you follow your circle, your comfort zone. Without real debates without questioning your personality.
Also the human connection is lost, the emotionality is replaced with a "like" and emojis. I think that there in nothing more intimate and calm than going somewhere knowing that nobody knows you are there, without revealing the world of what you are doing, so that when you come back to the memory it is with the people who lived and felt that moment, making me take a real nostalgia and be special, a unique memory between that person and you.