• Artyom@lemm.ee
    link
    fedilink
    arrow-up
    29
    ·
    edit-2
    7 months ago

    Interesting. I remember reading a news article before 2017 stating that printers used to do this, but the practice has since ended because someone was able to prove they were doing it in the mid-2000s. At the time, I saw some people on Reddit claiming they just switched to a new, harder to detect method, and everyone was saying they were conspiracy theorists.

    • Rentlar@lemmy.ca
      link
      fedilink
      arrow-up
      26
      ·
      edit-2
      7 months ago

      On wikipedia there’s some suggestion that methods that involve intensity of toner/ink across a document could be used to uniquely identify a machine but no such methods are currently publicly known (at least as far as the Wikipedia article has been updated)