Used by the Germans during WWII, Enigma machines helped the Nazis send encrypted messages Used by the Germans during WWII, Enigma machines helped the Nazis send encrypted messages During World War II, dozens of women students at Cambridge University worked around the clock in complete secrecy to crack Nazi codes, but only now are the unsung heroes getting recognition. At least 77 students from the women-only Newnham College were drafted to Bletchley Park, the code-breaking center north of London, during the conflict. It was there that mathematician Alan Turing decoded messages encrypted by the Nazis' Enigma machine, in particular those...