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.

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 ...

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.

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 ...

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 ...

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 ...

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 at ...