Poles did not stole some single Enigma and smuggled to UK but were successfully breaking the code (Germans weren't stupid and were improving the machine so deci

Poles did not stole some single Enigma and smuggled to UK but were successfully breaking the code (Germans weren't stupid and were improving the machine so deciphering its cryptograms was a moving target). The whole project was disclosed and moved to UK when Poland fell under German-Russian occupation.