The authors made an attempt to describe the problem of developing the concept of risk assessment of deviant online behavior of minors and young adults in social networks. The article looks into the psychological consequences of banalizing of the internet, analysis possibilities for offline and online behavior. Approaches for risk factors assessment of deviant behavior in real life are described: the qualitative (clinical), statistical (actuarial) and structured. The article systemizes the studies of risk factors, vulnerability, and deviant patterns in the context of phenomena such as aggressive, asocial, auto-aggressive, self-mutilating, suicidal, risk-taking and victim online behavior. Approaches and models of online deviant behavior are discussed; an attempt is made to build a structured model of risk assessment of deviant patterns of online behavior in the context of the cultural historical concept. On the basis of theoretical analysis, a hypothetical set of group, interindividual and intraindividual constructs is formulated, the combination of online and offline risk factors produces a model for risk assessment of deviant behavior. The article is written as part of the research project “Developing the profiling model of online behavior of minors and young adults in social networks” which was initiated by the Moscow State University of Psychology and Education.