At present, social networks have developed rapidly in Vietnam. Users are mainly young people and students. The paper describes research findings on some aspects, including: 1) Actual use of social networks among students
2) Social networking information security
3) Demand for using social networks
and, 4) types of pressure that students may face in using social networks. Based on data collected with questionnaires from over 4,205 students in 6 big cities, the author comes to several conclusions, as below: of all social networks, Facebook is the one that most students use (86.6 percent) with a duration ranging from 1 hour to 5 hours a day. They use social networks mainly for entertai~ment and interaction. By now, the extent of pressure that students have to suffer due to the use of social networks hasn't become alarming yet. Nevertheless, the greater demand for using social network they have, the more likely it will be that they will be pressurized by social networks.