The level of access to Internet services of children and adolescents has been studied in the article. Children use Internet services the most frequently to play video- or computer games, or to download them; to download information for studying or entertainment, to communicate with the help of different messengers (Skype, iTalk, using a web-camera etc.). There have been studied different forms of violence, faced by children in the information and communication environment: cyber-bulling, grooming, sexual abuse (sexting) etc. There have been analyzed the risks, faced by children in the information and communication environment. It has been discovered that the most widespread are imposing of unnecessary information, interference with a digital device, spreading of false information about children and adolescents, bullying, threats, as well as communication with strangers, leading to unintended consequences. There have been identified pre-conditions and factors of emergence of cyber-bullying and other forms of violence with the use of information and communication technologies. One of the factors that children face a serious danger in the information environment is the irresponsibility of adults as well as their ignorance of the basic rules to provide a child with a safe online environment. There have been studied the most probable illegal actions, used by offenders towards children and adolescents in Internet. There have also been identified consequences for a victim of violence as well as for an offender with the use of information and communication technologies. The victim as well as the offender has low self-esteem, poor mental and physical health, issues with studying and peer communication. There have been suggested the ways to prevent violence against children with the use of information and communication technologies. One of the major objectives of reaction towards violence against children with the use of information and communication technologies has to be not only the creation of an effective system of support and handling of violence cases, but also immediate resolving of legal aspects of prevention and elimination of cyber-bullying and online sexual exploitation of children.