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The American Black ChamberFrom CryptoDox, The Online Encyclopedia on Cryptography and Information Security(Redirected from MI-8)
The American Black Chamber (also known as MI-8), was America's first peacetime cryptanalytic organization and a forerunner of the top-secret National Security Agency. The only prior codes and cypher organizations maintained by the US govenrnment had been some intermittent, and always abandoned, attempts by Armed Forces branches prior to WWI. It was headed by Herbert O. Yardley and was founded immediately following WWI. Its mission was to break the communications (chiefly diplomatic) of other nations. Books of Interest
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