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Spymarks, not Watermarks

698 points · 171 comments · possibilistic

  1. CM30 · · focus · HN ↗
    Don't media companies do something like this to track which employee might have leaked films/TV shows/video game trailers/etc online?

    I recall they had separately watermarked versions of these to make it easier to figure out how things were being leaked.

    1. matt-attack · · focus · HN ↗
      Yes they’re commonly called forensic marks in such contexts.
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