You have no idea how deep this rabbit hole goes. Search for EFF printers secret tracking.
replyVirtually all commercial printers embed an invisible identifier on every page printed.
Virtually all color laser printers and copiers.
replyNow I need to see if agentic reverse engineering of printer firmware can actually remove that "feature" for good.
replyIt was about money anti-counterfeiting.
replyThere is always a legit reason. It’s just never the only reason.
replyNot only USSR.
replyI wonder whether Arthur Conan Doyle had the idea before the police started using typewriter typeface wear and tear for forensics.
Sure, try to scan, photocopy, edit in photoshop or print US money today.
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