translation.en: It doesn't tell.  One of the twists in the plot is that a Russian spy is discovered by Turing.  Which isn't surprising at first, but then we find out that British intelligence planted him to tell the Russians secrets they wanted them to know, after all Russia and Great Britain were on the same side in WWII.
translation.hi_en: yah nahin bataata. saajish mein ek tvist yah hai ki tyooring dvaara ek roosee jaasoos kee khoj kee jaatee hai. yah pahalee baar mein aashcharyachakit karane vaala nahin hai, lekin phir hamen pata chala ki british khuphiya ne unhen roos ke rahasyon ko bataane ke lie lagaaya tha, jo ve jaanana chaahate the, aakhirakaar roos aur gret briten wwii mein ek hee taraph the.