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David Kahn, a journalist and historian who unlocked the hidden world of cryptology in his best-selling 1967 book “The Codebreakers” and became a preeminent scholar of signals intelligence, revered ...

An international team of codebreakers said Wednesday they have found and deciphered the long lost secret letters of 16th-century monarch Mary, Queen of Scots, one of the most argued-over figures in ...

World War II wasn’t won with just flashy tanks, large ground assaults, and new weapons. Hidden behind the spotlight were American codebreakers, slowly churning through enemy messages, decoding them ...

Hulton Archive / Getty Images We can now learn more about one of the most controversial monarchs in European history, thanks to a trio of amateur cryptologists who unknowingly stumbled upon a treasure ...