Prompt's TechBlog
Hidden information in colour printouts.
18 October 2005
Posted by LC
Most of the major manufacturers of colour printers implement technology in their devices which encodes hidden data in the printouts. Invisible to the naked eye, this data is used by governments and law enforcement agencies to track money and document counterfeiting operations. At least, that's the official line. There are all sorts of sneaky cloak and dagger type things they could use this system for, the true extent of which depends largely on how paranoid you are.
Digital rights campaigners, the Electronic Frontier Foundation, have recently cracked the code and discovered exactly what kind of information is being secretly encrypted into every single colour document you print.
Digital rights campaigners, the Electronic Frontier Foundation, have recently cracked the code and discovered exactly what kind of information is being secretly encrypted into every single colour document you print.
# posted by LC at 4:29 PM 
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