You maybe have printer that spying on you
Yes that is maybe truth. According to Electronic Frontier Foundation ( EEF ) some printers include secret code in printout and this can be used in identify the printer, and of course the person who used it. For Security measures and purposes, US government has succeeded in persuading some printer manufactures to encode each page with identifying information. That means that without your knowledge or consent, an act you assume is private could become public. A communication tool you’re using in everyday life could become a tool for government surveillance. And what’s worse, there are no laws to prevent abuse.
You can read all article on EEF pages
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Your post make me think. I just check is it my printer on list, and it is. I’ll be more careful when i’ll print something next time…