A French amateur codebreaker claims to have done what police and other investigators could not: Solve the remaining Zodiac Killer ciphers, including one that supposedly reveals the California killer’s ...

At the heart of CIA headquarters stands a mysterious sculpture known as Kryptos, an artwork designed as a puzzle meant to be ...

The expert cryptanalyst and the Sunday-puzzle expert alike rely on the fact that letters have their own personalities. As David Kahn writes: “To the casual observer, they may look as alike as troops ...

The Himalayas as a short area in Indiana Jones and the Great Circle. Here there aren’t any mysteries to solve, ruins to explore, or safes to open. Instead, you’ll be making your way through a ...

Fortnite is entering its hacker era with this week's cipher decryption quests: figuring out the right locations will lead you to a bunch of goodies including the Keep the Peace Syndicate Idol spray, ...