The problem of fake news becomes especially prominent during periods of social exacerbation, such as the coronavirus pandemic, wherein the events have a significant impact on many lives. Generational differences are considered as a factor affecting perceptions of the reliability of news. The aim of this study was to reveal and compare the social representations of information reliability and news verification criteria among people belonging to the Generation of Reforms (born 1968-1981), the Millennial Generation (1982-2000) and Generation Z (2001 and later) in Russia. The study involved 431 participants and was comprised of two stages: focus groups and a survey. The data analysis methods employed were thematic analysis, qualitative and quantitative content analysis, coefficient of positive answers (according to J. Abric), Kruskal-Wallis H test, Pearson's chi-square test, Spearman's rank correlation coefficient, and Kendall's t-rank correlation coefficient. We have found significant differences between the Generation of Reforms (CPA: 80,5; p = 0,000) and Generation Z (CPA: 90,2; p = 0,000), and similarities between the Millennial Generation (CPA: 90,3; p = 0,000) and Generation Z, in the structure and content of social representations regarding "fakes". Notably, Generation Z favors a fact-checking strategy to identify news reliability, while "Reformists" rely on offline contacts. Generations in Russia differ with respect to their tolerance of "fakes" and their strategies for news verification. The results advance our understanding of "fakes" as purely social constructs. The attribution of media incompetence to older and younger cohorts by each other was discussed as the generational conflict.