Cryptography

true_crime

The Zodiac Killer was an unidentified serial attacker who operated primarily in Northern California during the late 1960s, claiming responsibility for five confirmed murders and...

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cryptography

The Zodiac Killer cipher refers to the encrypted letters sent by the Zodiac Killer to Bay Area newspapers in the late 1960s and early 1970s. Some of these ciphers have been subs...

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