General Erich Fellgiebel was responsible for German military signals in WW II. He pushed for the adoption of Enigma. As a plotter against Hitler, he was tortured and executed without ever revealing the names of any coconspirators. As a man of exceptional intelligence and discipline, Fellgiebel might also have deliberately introduced or tolerated flaws in Enigma security as a way to help defeat Hitler. In any event, it is known that Fellgiebel repeatedly suppressed investigations that strongly supported suspicions that Enigma had been compromised.
That’s very interesting!
Thanks for posting that :-)