The research analyzes the legal aspects when using the two main social networks in Colombia as they are facebook and twitter. Through a descriptive qualitative approach and documentary analysis are results associated to the use and responsible connection of users in social networks and its relation with the violation of Colombian regulations in which are the computer crimes, the protection of information and the Data, slander and slander, cyberbullying and copyright. Attendant problems when not properly uses information on social media in the legal field were determined.