The story of Kryptos and the cryptanalyst who spent decades trying to solve the CIA sculpture greatest mystery.

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 ...

The cryptic text of a 250-year-old secret society has finally been translated. Researchers from North America and Europe used a powerful computer program to break the code. Daniel Hajek reports on how ...

A unique cipher that uses playing cards and dice to turn languages into glyphs produces text eerily similar to the glyphs in ...

For 51 years, one of the Zodiac Killer’s puzzling codes he sent in letters to newspapers in the late 1960s and early 1970s has confounded the cryptography community, law enforcement and curious ...