Near the CIA headquarters in Langley, Virginia, there is a sculpture known as Kryptos. It has been there since 1990 and contains four secret codes—three of which have been solved. The final one has ...
Jim Sanborn’s inbox is flooded with amateur cryptographers who say they’ve cracked the code with chatbots like Grok 3.
Like something from a Dan Brown novel, Kryptos is a cryptographic puzzle at CIA headquarters that has never been solved. The sculpture is 12 feet high, and stands on the grounds of the CIA complex ...