Back in the analog video era, it was relatively straightforward for hackers to reconstruct what was on a screen by detecting the leakage from video cables. But...
    • knightly the SneptaurEnglish
      2·
      4 months ago

      Same issue.

      It’s not just the HDMI either, any electronic circuit produces RF interference that can theoretically be reverse-engineered by Van Eck Phreaking.

      • Malgas@beehaw.orgEnglish
        5·
        4 months ago

        The Memex they’re taking about (Angleton is a character from The Laundry Files) is an electromechanical filing system for microfiche.

        It was never built IRL, so it’s difficult to get into the nitty-gritty of security details, but I’m pretty sure that Van Eck phreaking would get you at most the index positions of the documents being accessed, and you’d need optical surveillance to discover their content.

        • knightly the SneptaurEnglish
          2·
          4 months ago

          You’re right, of course, though the metadata it’d reveal about the indexing system would probably still be useful in the right context…