This article comprehensively studies the system and problems of applying legal regulation measures in developed foreign countries, one of the obvious threats to information and psychological security - the phenomenon of cyberbullying. Furthermore, it highlights the study of the state of modern legislation, measures, and problems of legal impact in developed countries in relation to cyberbullying. In particular, the legislative norms and the process of their application in the United States, Canada, Australia, and some countries in Europe were analyzed; based on the results of the analysis, including foreign experience, proposals and comments were made taking into account national interests in our country.