Worth pointing out that ENIGMA continued to be used as a source of Intelligence long after the end of WW2... I believe a number of South American countries (Chile springs to mind) were gifted Enigma sets, will the knowledge their usage could be monitored...
all in here ( a fantastic book btw) :
Worth pointing out it T'was the poles who did the first crack of Enigma; Turing was exceptional at industrialising its exploitation and providing direction when the system changed (increased rotors on SHARK etc)