On the basis of the German documents the author examines the special operation of the Hitlerite secret services aimed at misinformation of the USSR political leadership and military high command in regard of Germany’s military and political intentions on 1941 and possible terms of the German attack against the USSR. The author investigates various options of misinformation and methods of misleading and offers an answer to the question why did the Soviet leaders were so slow with giving the order to the along the border military districts' troops to get ready for combat.