The Germans learn all about Bletchley Park

nova2010

Banned
What if the Germans knew that in Bletchley Park the allies are reading the ENIGMA? What the impact? No allied North Africa victory? No D-Day? No knowledge of Holocaust? Nazi Germany victory?
 
What if the Germans knew that in Bletchley Park the allies are reading the ENIGMA? What the impact? No allied North Africa victory? No D-Day? No knowledge of Holocaust? Nazi Germany victory?

Could you be a tad more specific, like mentioning exactly when they find out, and how? IIRC, there weren't any German spies in the UK who weren't actually double agents, so the knowledge would have to come from somewhere else.
 
Most likely times to find out

I can't speak for the original post, but there were several opportunities for the Axis to figure out at least some of their vulnerabilities:

1) The fall of Poland: If the Germans had captured the Polish crypto people and/or their records they would have gotten insights into the vulnerabilities that were later exploited by the Allies. The Poles were responsible for most of the early breakthroughs on reading Enigma.
2) The fall of France: The Polish crypto people had turned up in France, and France had their own crypto, which had made considerable progress based partly on the Polish ideas.
3) The fall of Singapore: The British had, and lost at Singapore, an American "purple" machine, for deciphering the Japanese diplomatic code. If the Japanese had found it, there is a chance that they would have passed on the fact of advanced Allied code-breaking capacities. At least they might have been a little more careful with their own codes, and the Japanese ambassador to Germany was the source of much of the Allied insights into what the German leadership was thinking.
4) There was a want-to-be German spy in the US code establishment. From old and possibly faulty memory, if he had been able to establish contact with the Axis it would have been in 1943 or 1944.
5) An Allied ship with decoded Enigma messages was sunk off of North Africa in 1942 or 1943 and the Italians may have done some salvage operations on it or started to. I don't remember the exact sequence of events or the timing, but I do remember that the Allies were concerned.
 
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