Last couple of years there has been a rapid development of information and communication technologies. Internet plays a significant role in people's lives and over the years it has become one of the main means of communication. Besides many positive things that Internet has to offer, there are also a lot of negative sides to it and one of them is cyberbullying. Children and young people are the most common users of the Internet and it plays a very important role in thier lives. As children and young people are in the phase of developing and forming their identities, this makes them a particularly vulnerable group to whom the Internet can give a false sense of security which can lead to them becoming victims of cyberbullying, most often committed by their peers. Cyberbullying among youth is a recent phenomenon that has been growing more and more in recent years. It is often compared to classic peer violence, but although they have certain similarities, the main difference is that cyberbullying takes place in online spaces, which includes the Internet, social networks, mobile phones, blogs, e-mail. Cyberbullying leaves numerous and severe consequences in the physical, mental and social functioning of victims, but also perpetrators, such as the development of depression, anxiety, decreased self-esteem, poorer academic success, consumption of narcotics. This paper aims to point out the serious psychosocial consequences that this type of violence causes,