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The implication is that only color printers are affected.

"The U.S. Secret Service admitted that the tracking information is part of a deal struck with selected color laser printer manufacturers, ostensibly to identify counterfeiters."

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People are really using consumer printers in counterfeiting?

No because most will refuse to print anything with the EURion constellation.

https://en.m.wikipedia.org/wiki/EURion_constellation

Huh. Fascinating.

Same with photoshop. Try to open this in PS:

https://upload.wikimedia.org/wikipedia/commons/7/7b/Obverse_...

People will try anything, and I suspect more "counterfeiting" is prevented by the EURion constellation than we'd expect.

Probably just idiots playing around with the copier rather than dedicated gangs, but if it worked they might be tempted to say "Well ..."

https://old.reddit.com/r/mildlyinteresting/comments/1s8rl9/i...

This at least massively reduces anti-counterfeiters’ caseload.

IIRC some of the very early dollar bill acceptors on vending machines were perfectly happy with a black and white photocopy.

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