Herbert Yardley
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Herbert Osborn Yardley was an American cryptologist. He founded and led the Black Chamber, the US government's first peacetime cryptanalytic organization. Under Yardley, the cryptanalysts of the Black
Herbert O. Yardley
National Security Agency
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The National Security Agency is an intelligence agency of the United States Department of Defense, under the authority of the director of national intelligence. The NSA is responsible for global monit
Herbert Yardley
…limited) and China during World War II, but he was never again given a position of trust in the US government. Still, in 1999 he was given a place in the National Security Agency Hall of Honor. None of Yardley's many later attempts at writing was as successful as The American Black Chamber, but he published several articles and…
NSA headquarters building in Fort Meade, Maryland, c. 1986
Black Chamber cryptanalytic work sheet for solving Japanese diplomatic cipher, 1919
Protesters against NSA data mining in Berlin wearing Chelsea Manning and Edward Snowden masks
Intercepted packages are opened carefully by NSA employees.