publication croisée depuis : https://lemmy.world/post/7290317

Hi, I have been having a look at utilising RF and trying to understand how every device around me emits RF.

I recently came across RTL-SDR and HackRF, alongside software like SDR++, TempestSDR, gqrx etc. I know that I can spy on my monitor and record keyboard keys being pressed using RF, but what are some other ways I should be looking at to exploit my digital vulnerabilities, and trying to solve such problems?

Thanks!

Edit: I’m well aware that nothing I’m doing is that interesting to security agencies across the globe. With that said, I’m interested in maintaining my privacy, and this happens to be an avenue I find interesting. Any suggestions on how I can look to do so would be greatly appreciated!

  • @[email protected]English
    5•1 year ago

    TEMPEST style attacks are not practical outside of anechoic chamber because while your screen emits some radiation that does contain some data, so does everything else. Don’t bother too much about it

    • @MigratingtoLemmyOPEnglish
      0•1 year ago

      Thanks, but would it be very hard to pinpoint the frequency at which the signals from the HDMI cable connected to my monitor are being emitted? Also, could one track/snoop on wireless keyboards using RF?

      • @sramderEnglish
        3•1 year ago

        Like others said TEMPEST style attacks are possible but more of a novelty. It’s a much noisier world now.

        Take a look at the NSA ANT catalogue that was leaked about 10 years back for more current thinking on exfiltrating people’s data.

        Pick up a flipper-0 and play around. There’s a ton of insecure wireless keyboards/mice… it was almost a foot-note in one of the DEFCON videos I watched last month. Unfortunately I’m not sure which video :-)

        There were several videos from this year’s conference on similar subjects, reverse engineering the Fasttrack system is probably a good ~1 hour way to start wrapping your head around the work involved.

        • @MigratingtoLemmyOPEnglish
          2•1 year ago

          Thanks for pointing me towards the NSA ANT material, I’ll have a look!

          I have been watching a few DefCon videos myself, and they have been quite entertaining so far. I had never heard of a flipper-0 before this either. Thanks for the tip on Fast track too!

          • @sramderEnglish
            3•1 year ago

            Have fun, play safe, think about a ham license. It’s a good way to meet other experimenters with relevant experience.