‹ BackHN Continuity

Thread

Spymarks, not Watermarks

698 points · 171 comments · possibilistic

  1. in_absentia · · focus · HN ↗

    [dead]

    1. __MatrixMan__ · · focus · HN ↗
      The US government has successfully used this technology to find and punish whistleblowers. It's not just about AI.

      Hidden side channels of any kind, not under the user's control, should be looked upon with suspicion.

      1. Joel_Mckay · · focus · HN ↗
        The natural manufacturing defects in all image sensors uniquely identify normal media. Post once to a friend over mms or a social media service... and your ninja life is burned.

        These kids and their foreign contractor run VPN services are naive about depth-charge Steganography. Privacy has been dead for years. =3

        1. __MatrixMan__ · · focus · HN ↗
          When I search for "depth-charge Steganography" I find... this thread and nothing else. So I think most people are ignorant of it. Is there a typo? Or is it so secret that the web hasn't heard of it? If the latter, then I think you just blew its cover.
          1. Joel_Mckay · · focus · HN ↗
            It is a class of exploits, and was covered many times before publicly.

            Don't worry about it... Have a nice day, =3

    2. EmbarrassedHelp · · focus · HN ↗
      Based on how easy it is to make these watermarks encode personal information, its basically guaranteed that people are going to use it for privacy violations and surveillance.
Open on Hacker News to reply ↗

Unofficial Hacker News client; not affiliated with Y Combinator.