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Lost and found: Codebreakers decipher 50+ letters of Mary, Queen of Scots
"The team described in a new paper published in the journal Cryptologia how they broke Mary's cipher, then decoded and translated several of the letters."
https://arstechnica.com/science/2023/02/lost-and-found-code-breakers-decipher-50-letters-of-mary-queen-of-scots/