The 35-year-old saga of Kryptos, an enigmatic sculpture containing four encrypted messages outside the CIA headquarters, just ...

A single leaked hint exposed the CIA’s most puzzling code. But dozens of the world’s toughest ciphers are still waiting to be solved.

Learn to use the cipher utility with confidence. This Daily Drill Down walks you through using every cipher switch and shows you exactly what happens in the real world when you use these switches.

You could do worse than to confuse the meanings of "code" and "cipher"—even cryptographers sometime use the terms as though they had the same meaning. There is, however, a definite distinction between ...

How does a cipher and code, used by a failed politician, dropped into the middle of a trial for treason in 1807, involving then-president Thomas Jefferson and Chief Justice John Marshall, lead to a ...

Hamster Kombat, a widely popular Telegram-based crypto game launched in March 2024, offers players the chance to earn up to 6 million tokens for free through new code word and card combinations.

It’s long been assumed that the identity of the “Zodiac killer,” who terrorized Northern California from the late ‘60s through the early ‘70s, is one of those mysteries that will never be solved.