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Zodiac Killer Ciphers

This forum is for the discussion of Zodiac ciphers and cryptography.

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This forum is for the discussion of the Zodiac Killer Z408 cipher, a cipher sent in three parts to three newspapers in 1969.

This forum will discuss everything related to the Z340 cipher.

This forum will discuss the Zodiac Killer Z13 "My name is" cipher.

This forum will discuss the Z32 cipher from the Zodiac Killer. Otherwise known as the bus bomb letter and cipher.

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