Mass media are everyday life of a contemporary individual. The same have caused a certain "new era" - of connectivity, sharing and extraordinary speed of flow of large amounts of information. A modern individual is spending most of his time working on the computer, socializing and absorbing a great deal of content - and that's why it's important to be media literate. People who are particularly vulnerable are always the youngest population - so today children are the most vulnerable population using mass media, including the Internet. In this paper, the topic we’re going to discuss is children and influences of mass media on children: what are the challenges and dangers and how to optimally access the facts of child vulnerability and child rights in the virtual world and the world of mass media. The focus is on the role of education and systematic approach to specific problems, and the prevention of Cyberbullying and the recognition of forms of undesirable and socially irresponsible behavior and the transformation of collective consciousness to collective social responsibility - those are the only ways to deal with this problem, which are just like the mass media - ubiquitous and global.