Most of all, destructive propaganda (of extremist and terrorist persuasion) affects people whose mental state is more vulnerable and receptive. Children and adolescents are more easily amenable to destructive influence on their own yet unformed worldview. The young man is fascinated by the search for the meaning of life and the significance of participating in polar activities, saturated with potential risk, without realizing the true consequences of his involvement in extremist activities. Any uncontrolled religious and political doctrine goes through the following stages from “harmless” fanaticism, as a kind of philosophical and religious intoxication of the individual himself, to religious and political terrorism with an extensive system of accomplices and followers, whose activities can destroy public institutions, lead to death of people and entail other serious effects. So, in descending order, we outline five stages of philosophical or religious-political intoxication, which goes through any individual who has delved into the study of certain religious or philosophical ideas: ordinary religiosity or enthusiasm for philosophical and political teachings; fanaticism; fundamentalism; extremism; terrorism. Propaganda materials are characterized by a creative idea and the use of psycholinguistics and marketing techniques. The information is radical, subjective and tendentious in nature, the final goal of which is to recruit the user. From a criminological and psycholinguistic point of view, the prevention of destructive propaganda among young people comes down to a conscious choice and selectivity of visiting Internet resources and consuming information presented in the public domain.