The Internet due to its accessibility, involves a large number of users, among them minors. Almost every child has a mobile device that allows her to surf the Web at any time. On the one hand, this is a positive experience in terms of knowledge, fast access to essential scientific sources, and on-line communication with parents. On the other hand, this poses a constant risk of being influenced by harmful information from other Internet users. The impact of harmful information on the fragile minds of underage users can be extremely negative. Therefore, the problem of regulation of harmful information dissemination on the Internet is of great concern. There are several ways to combat harmful information and its impact on children. All possible types of harmful information for dissemination of which administrative or criminal responsibility can be imposed are enshrined in federal legislation. The fight against Internet-based resources that host harmful information can provide for perpetual blocking of the site. Preparing children for virtual communication with parents and educational institutions.