723
Ordinary WiFi can now identify people with near perfect accuracy (www.sciencedaily.com)
submitted 5 months ago by to c/technology@lemmy.world
224 comments fedilink hide all child comments
 

The reason the FCC is only allowing the sale of state approved routers in the US?

you are viewing a single comment's thread
view the rest of the comments
[–] 21 points 5 months ago (12 children)

Building codes should probably include Faraday-cage type shielding.

  • permalink
  • fedilink
  • source
  • hideshow 12 child comments
    •
  • [–] 20 points 5 months ago (6 children)

    That would prevent cell signals from inside, making it harder to (e.g.) call the fire department, or an ambulance.

  • permalink
  • fedilink
  • source
  • parent
  • hideshow 6 child comments
    •
  • [–] 6 points 5 months ago (3 children)

    That could be fixed by using WiFI calling, getting a VoIP line or installing a cell booster.

  • permalink
  • fedilink
  • source
  • parent
  • hideshow 3 child comments
    •
  • [–] 1 point 5 months ago (2 children)

    WiFi calling will make a direct beacon to follow, as any other WiFi use would. Faraday cages would block WiFi calling, as with any other signal.

    I think these techniques can use the reflection of the signal from the AP’s own transmissions, no additional devices needed.

  • permalink
  • fedilink
  • source
  • parent
  • hideshow 2 child comments
    •
  • [–] 6 points 5 months ago (1 child)

    The Faraday cage will keep the WiFi signals inside the building. Nobody will be able to track you from outside and your own trusted devices will work fine inside. Just don't bring any untrusted WiFi devices inside the Faraday cage.

  • permalink
  • fedilink
  • source
  • parent
  • hideshow 1 child comment
    •
  • [–] 3 points 5 months ago (2 children)

    I'm wondering if some types of crystal can absorb or distort the signals enough to make you harder to identify. I mean I guess you'd be "that guy with the crystals in his pocket" and would be easy to correlate to CCTV flock, but if everyone does it it could create a layer of obscuration.

    Especially things with piezoelectric and/or electromagnetic effects. I'm thinking mainly along the lines of quartz, tourmaline, pyrite, tiger's eye (hematite/jasper), shungite, etc.

    It would be worth experimenting with if anyone tries that open source software another commenter linked...

  • permalink
  • fedilink
  • source
  • parent
  • hideshow 2 child comments
    •