For nearly a decade, sleuths had tried to decode a cryptic note discovered in the silk bustle dress. An analyst finally cracked the case. By Livia Albeck-Ripka Sara Rivers Cofield was on her usual ...

A coded letter from the Zodiac Killer was finally deciphered after over 50 years. A code breaking team tested thousands of ways to crack the code on one of the killer's messages from the late 1960s.

Russia's mysterious shortwave radio station, often called the 'Doomsday Radio', has again caught global attention after broadcasting a large number of secret messages in a short time. The station, ...