Venona
William Marias Malisoff, whose cover name assigned by Soviet intelligence and deciphered by Arlington Hall cryptographers were HENRY and TALENT. Malisoff is identified in the following intercepted Venona project decrpytions:
195. Venona 1276 GRU New York to Moscow, 1943; 193 KGB New York to Moscow, 8 February 1944; 620 KGB New York to Moscow, 4 May 1944; 622 KGB New York to Moscow, 4 May 1944; 1077 KGB New York to Moscow, 29 July 1944; 1403 KGB New York to Moscow, 5 October 1944; 1680 KGB New York to Moscow, 30 November 1944; 1706 KGB New York to Moscow, 4 December 1944; 1755 KGB New York to Moscow, 14 December 1944.
Read more about this topic: William Malisoff