The end of 20th and beginning of the 21st century were marked by the development of information and communication technologies. With the development of technology electronic violence has become an increasingly frequent form of violent behaviour among peers. Although traditional face-to-face violence and electronic violence are similar, there are some differences that need to be taken into account, for example perpetrators on the Internet show less empathy, less self-control, and more antisocial behaviour. Electronic violence includes insults, harassment, attacks on privacy, spreading lies and insulting comments, cruel, malicious and threatening messages, creating websites that publish stories to hurt other people, and sending photos that are trying to humiliate others. It is important to emphasize the prevention of violent behaviour, where it is important to involve all the people in the environment, both family and friends, as well as the school itself and the wider public, which needs to be continually educated about the development of this problem.