10 Most Famous Uncracked Codes

[app103]

1.Kryptos

Kryptos is a sculpture by American artist James Sanborn located on the grounds of the Central Intelligence Agency (CIA) in Langley, Virginia, in the United States. Since its dedication on November 3, 1990, there has been much speculation about the meaning of the encrypted messages it bears. It continues to provide a diversion for employees of the CIA and other cryptanalysts attempting to decrypt the messages.

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[Darwin]

Pretty cool, app. Thanks for the link. I was disappointed at not being able to crack any of them other than linear A, which is so clearly a shopping list ("milk, eggs, sheep's brains") that I am embarrassed for the people who have based their careers on trying to crack it.