TheCodeBreakers
The
head—under Boki—of the O.G.P.U. group of wyptanalysts was one
Gusev, possibly Sergei I. Gusev, an old revolutionary, active in secret
printing, a member of the Central Committee of the Russian Communist
party since 1922, and on the Praesidium of the Comintern from 1930. He
too was purged in 1938.
husband, Roman Krivosh, had held a high post in the Okhrana; he
was alternately arrested and released, but worked for the Spets-Otdel
even while he was in the Butirskaya Prison in Moscow. Eventually the
police took Roman away to the same prison, but the head of his section
in what was then the 5th Directorate brought him his work.
There was, of course, no security problem with inmate-cryptanalysts.
But security was impressed on the others. They were not allowed to tell
anyone the department in which they worked nor even where the office
was. Doosia never even told her parents. They also had to keep out of
annaabi.ee 
