An anonymous bidder has won the solution to a 35-year-old puzzle for nearly $1 million. The top-secret code could be used to solve Kryptos, an infamously enigmatic sculpture containing four hidden ...

Helldivers 2 fans spotted what appears to be a spectrogram containing either Morse code or the image of a planet. The community has worked to decipher the Morse code, possibly revealing the secret ...

Coders have a storied tradition of creating back doors in programs (or sometimes just fun little Easter eggs) that can only be accessed with a special "key." This has happened for almost as long as ...

Bitcoin’s blockchain allows users to embed hidden messages, functioning as both a financial ledger and a permanent message board. Bitcoin’s OP_RETURN field enables users to store short messages ...