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Printer tracking dots (en.wikipedia.org)

submitted 4 days ago by kersploosh@sh.itjust.works to c/wikipedia@lemmy.world

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[–] jet@hackertalks.com 5 points 4 days ago (2 children)

If you buy the same printer in different counties do the dots persist or change?

[–] ramble81@lemm.ee 12 points 4 days ago (1 children)

I thought they were unique per printer not just type. More akin to a serial number instead of a model number.

[–] kersploosh@sh.itjust.works 4 points 4 days ago

That is my understanding. And I assume the dot patterns are made by printers worldwide. The article mentions Dutch law enforcement using them, and German researchers studying them.