"Kryptos: The CIA's Unsolved Enigma Stumping Codebreakers Since 1990"

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ToxicxBoombox on August 24th, 2025 at 07:22 UTC »

IIRC, there’s 4 codes hidden in it, 3 of the 4 have been solved, the last code everyone thinks has been lost. Even the creator of it said he wasn’t quite sure what it after all these years

TripCruise on August 24th, 2025 at 07:41 UTC »

I thought I read recently that they planned to auction off the final code?

Edit: Yep! NYT Article link (paywall) A Solution to the C.I.A.’s ‘Kryptos’ Sculpture Goes Up for Auction - The New York Times

Exerpt:

Mr. Sanborn has spent years answering tens of thousands of emails from people who believe they have cracked the puzzle. About 10 years ago, he started charging people $50 for a “short personal response” to emails in order to weed out most of the guesses.

“What can I say? I’m tired of it,” he said in an interview, adding an expletive before “tired.”