But the Bay Area killer’s 340-character cipher mailed to the San Francisco Chronicle has been cracked by an international team of code-breakers.

Code-breakers have cracked a 340-character cipher 51 years after it was purportedly sent to the San Francisco Chronicle by the so-called Zodiac Killer, the FBI has confirmed.

Experts have reportedly solved the code in the 340 Cipher sent to the San Francisco Chronicle in 1969 by the Zodiac Killer, the elusive figure who terrorized the Bay Area decades ago and killed ...

Code- and cipher-breaking have been in operation for centuries. However, cryptanalysis – the art of deciphering encoded messages – took on a new importance during WW2 as British boffins ...

A group of private citizens say they've broken an encoded message sent by the so-called "Zodiac Killer" to a San Francisco newspaper more than five decades ago.

Road Trip 2011: Code breakers led by Alan Turing were able to beat the Germans at their cipher games, and in the process shorten the war by as much as two years. At Bletchley Park, all the work ...

What better way to recruit potential code breakers than to advertise in cipher? That's what the NSA did Monday morning with this mysterious tweet: According to The Washington Post, if you're good ...

Singh adds some spice to his book with a special offer for would-be code breakers. At the end of the book, he sets up the cipher challenge with 10 levels of code and asks you to solve them.

Code- and cipher-breaking have been in operation for centuries. However, cryptanalysis – the art of deciphering encoded messages – took on a new importance during WW2 as British boffins ...