"Wiffract" Wi-Fi method can read letters through walls
"Wiffract" Wi-Fi method can read letters through walls
Researchers at the University of California, Santa Barbara, have developed a novel method for imaging objects beyond the line of sight, which they've named "Wiffract." This technique...
This is exactly why I don't store my passwords as giant metal 3D cutouts of letter shapes
I need to stop but it’s just so convenient.
but how else can you remember them
I don't even know any of my passwords
The tech to scan objects in a room using WiFi is not new. It's very unsettling.
I spy, with my little wifi...
And here I am thinking that hanging my passwords on the wall as art was hack proof. I guess it's time to redecorate.
You just need to write it smaller than the Wi-Fi wavelength (
about 60 nm) and you should be fine. If someone wants to read it, they have to use smaller wavelengths (i.e. higher frequencies), which means there’s a good chance that they will be blocked by your walls.Edit: c/2.4 GHz ≈ 125 mm I took the first value from Wikipedia, without thinking about it enough.
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If we're seeing it now, the government has probably been using it for years.
This is vaguely similar to Van Eck phreaking.
Lucius Fox hates this
This is super creepy
"baby i can read letters through walls"
the letters
Are there ways to design a room or things to put in a room (or the walls?) that would inhibit this ability?
I suppose lead shields or something...
Faraday cage?
No need for lead. Just make something similar to those microwave door mesh plates and embed it in with the insulation.
Well, if it's using WiFi, then anything you do will also kill your WiFi signal. So, bare minimum, no WiFi router, only LAN lines.
Yeah sure why not.
Radar arrays with consumer wifi parts? I don't really see the point.
