Weban international team of codebreakers has finally solved the zodiac killer‘s most uncrackable cipher after 51 years of efforts and countless tries, reported the san. Weba coded message sent by a brutal serial killer who has never been caught has been cracked more than 51 years after it was sent. Weban international team of cryptographers has published a new whitepaper detailing the massive amounts of work, crowdsourcing, and computational programming. Weba vintage dress purchased at an antique shop contained a hidden code that has baffled people for a decade. The code was broken by a data analyst at a canadian. Webthe notoriously difficult z340 cipher that the zodiac killer sent to the san francisco chronicle on november 8, 1969 has finally been decoded after more than 50. Webin 1969, a serial killer terrorized northern california with a very public yet covert persona. The zodiac killer murdered five people, though some called his.