A Polish postman helped solve the enigma code

They usually don't say that the Germans had cracked all the Allied ciphers, too. The only saving grace was that different agencies had cracked different codes, and none of them trusted the others, so nobody had the full picture.

Results of Enigma cracks were sent by one-time pad to keep them from knowing it had been cracked. I had a cousin whose job was to cobble up reasons for the Allies to know things they got from Enigma -- send a spotter plane to be seen by the tank column on its way to an ambush, that sort of thing.

"Enigma" is usually capitalized so you know it's talking about a crypto machine and not just a mystery.

The Poles really did an astonishing amount of phenomenally bad-ass work to crack Enigma long before any Brits really knew what it was, but all we hear about are Brits. They even designed the bombes. It's about time we got to learn names of Poles.