The E-Sylum:  Volume 8, Number 45, October 23, 2005, Article 18

XEROX COUNTERFEIT DETERRENCE SYSTEM

Adrián González Salinas of Monterrey, Nuevo León, México
writes: "I just read the following note and I thought it may be
interesting to The E-Sylum readers. [The article is from the
Sydney Morning Herald, October 18. -Editor]:

"The Electronic Frontier Foundation says it has deciphered a
code of colored dots used in Xerox's DocuColor under an
agreement with the US federal government. Xerox agreed to
program its printer to put encoded dots on all documents so
federal investigators could track the source of counterfeit currency.
The dots appear in an 8 x 15 grid visible only under a magnifying
glass or blue light, and give the date and time of a print-out and
the serial number of the printer that made it."

"The dots are visible only with a magnifying glass or under blue
light, which causes them to appear black.

By analysing test pages printed out by supporters worldwide
and by staffers at various FedEx Kinko's locations, researchers
found that some of the dots corresponded to the printers' serial
numbers. Other dots refer to the date and time of the printing."

To read the complete article, see: Full Story

  Wayne Homren, Editor

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