Did you know that many (in fact, most) color laser printers are spying on you whenever you print a document? Though you may not have heard the news, the discovery was announced in late 2005. Manufacturers embed a pattern of tiny yellow dots on printed pages. The dots are too small to be seen with the naked eye (especially since they’re yellow, see the above photo to see what they actually look like), but under a microscope and blue light they’re revealed.
All you would be counterfeiters should take pause or at the very least check out the list.
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