A coded message sent by a brutal serial killer who has never been caught has been cracked more than 51 years after it was sent. This story originally appeared on Ars Technica, a trusted source for ...

Among the many secrets of Der Eisendrache are hidden messages left behind as ciphers, often found as sheets or scraps of paper. They contain random numbers, alphabets, or images that you need to solve ...

The FBI has confirmed that a coded message from the Zodiac Killer has finally been cracked, more than 40 years after it was sent to the San Francisco Chronicle. The cracked code, however, does not ...

Usually, a story about hacking a coded message will have some computer element or, at least, a machine like an Enigma. But [Ruth Selman] recently posted a challenge asking if anyone could decrypt an ...

A woman in Maryland discovered a coded message hidden within the pages of a secondhand book bought for her by her mother. Sydney wasted little time in getting started, but found her progress abruptly ...