The killer sent taunting letters and cryptograms to police and newspapers that included astrological symbols. There are several theories about the killer's identity, but they've never been identified.
The killer even sent a series of letters to the press that included cryptograms believed to contain his identity. This is the Zodiac Speaking revolves around the murders of the serial killer and ...
These writings contained clues about his identity and mysterious cryptograms, leading to much speculation over who the culprit was and his motive. He claimed in some notes that he had murdered 37 ...
Dynamic security codes and Device Account Numbers (aka, tokens and cryptograms) are not unique to Apple and are built into the NFC specification that the company is adopting. In fact, much of the ...