Auction of famed CIA cipher shaken after archive reveals code
It is one of the world's most famous unsolved codes whose answer could sell for a fortune—but two US friends say they have already found the secret hidden by "Kryptos."
It is one of the world's most famous unsolved codes whose answer could sell for a fortune—but two US friends say they have already found the secret hidden by "Kryptos."
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Nov 19, 2025
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It's the third of a generous five Saturdays in the month of November. What did we do to deserve such a bounty of days off? In the last week, we reported on hundreds of developments in science. Here is a more or less arbitrary ...