The article is devoted to the study of one type of bulling - cyberbullying. The author analyzes the concepts and features of cyberbullying. The author individually distinguishes the features contributing to cyberbullying, in particular, the distance (there is no direct contact with the victim); anonymity (ability of the bully (aggressor) to protect himself from identification); prevalence (the ability to reach a large audience in the hiring process); support (the ability to involve an unlimited range of bullies in the hatching process); persistence (cyberbullying does not depend on the time and location of the bully (the aggressor) and his victim, no need for eye-to-eye contact); equality (absence of a bully (aggressor) need to take precedence in strength, social status, financial status, etc.).
 Features of cyberbullying include changes in behavioral and emotional state during or after use of mobile phone or other Internet-access devices; hiding certain facts of one’s online communication; avoiding school or friendly meetings; occurrence of unmotivated anger at home, destructive relationships with parents or teachers; change in mood, behavior, sleep or appetite; desire to stop using one’s PC or mobile phone; avoid talking about one’s PC or mobile phone activity; impaired learning; suicide attempts. The article deals with the classification of types of cyberbullying, where the following are separately distinguished: trolling, happy-sloping, flamingos, attacks, slander, defamation, impersonalization, fraud, alienation, cyber-harassment, sexual assault.
 The author identifies the reasons that contribute to the spread of this negative phenomenon. In addition, special attention is paid to the prevention of cyberbullying, where among the main are the education of cyber literacy, direct communication and interest in the life of the child, spending more time with the child, demonstrating the benefits of real communication over virtual.