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Army's first cipher office broke the code on modern cryptology

FORT HUACHUCA, Ariz. -- When Ralph Van Deman established the War Department's intelligence organization shortly after the United States entered World War I, he was faced with the daunting task of ...
Smithsonian Magazine

The Spy Who Exposed the Secrets of the Black Chamber, One of America’s First Code-Breaking Organizations

In 1931, Herbert O. Yardley published a tell-all book about his experiences leading a covert government agency called the Cipher Bureau Peter Zablocki - History Correspondent Herbert O. Yardley ...
PBS

Decipher a Coded Message

You could do worse than to confuse the meanings of "code" and "cipher"—even cryptographers sometime use the terms as though they had the same meaning. There is, however, a definite distinction between ...
Macworld

Burr’s cipher, sir: The 1807 treason case that featured in the Apple/FBI conflict

How does a cipher and code, used by a failed politician, dropped into the middle of a trial for treason in 1807, involving then-president Thomas Jefferson and Chief Justice John Marshall, lead to a ...