The author explored the socio-political consequences of the Soviet-Yugoslav conflict of 1948-1955. for Yugoslavia. The main attention is paid to the phenomenon of information bureau members who, to one degree or another, supported the accusations brought against Yugoslavia by the Cominform Bureau. The author analyzes various aspects of the policy of repression, the problem of the reliability of available sources, manifestations of information bureau activity, the social nature of the movement, and the assessment of information bureaucrats in historiography.