Cryptologic Bytes

"On This Date in History" Calendar

1931: US Coast Guard Established Cryptanalytic Section

Monday, July 1, 2024

1 July 1931: At the urging of Elizebeth Friedman, the US Coast Guard established a seven man cryptanalytic section.

Learn more in the NSA Center for Cryptologic History's document - "Listening to the Rumrunners: Radio Intelligence during Prohibition" by David P. Mowry, as well as Elizebeth Friedman's Hall of Honor page. See links below.


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