After millions of attempts, thousands of bad solutions and 51 years, the Zodiac Killer’s most infamous cipher has been solved. If your skepticism is tingling, you are not alone. In the decades since ...

A coded message from the notorious Zodiac Killer appears finally to have been cracked, more than 50 years after the string of murders began in Northern California. Last week, the individuals brought ...

The cryptic text of a 250-year-old secret society has finally been translated. Researchers from North America and Europe used a powerful computer program to break the code. Daniel Hajek reports on how ...

Introduction If you need to send a secret message to a friend, how could you prevent other people from reading it? One way is to encrypt the message—that is, use a secret code that only you and your ...