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…
Seriously, yikes. This is going to be very bad in the wrong hands. Cool concept though.
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 leverages the interaction of Wi-Fi radio-frequency (RF) signals with the edges of objects that need to be imaged, guided by the principles of geometrical diffraction theory (GTD). With the appropriate mathematical model, Wiffract can produce remarkable outcomes, such as “reading” shapes and letters through walls.
The researchers explain that when an RF wave encounters an edge point, it generates a cone of outgoing rays known as a “Keller cone” in accordance with GTD. Wiffract’s mathematical model can capture the edges of stationary objects by utilizing GTD theory and the corresponding Keller cones. Once it identifies “high-confidence edge points,” Wiffract can reconstruct the shapes of objects while enhancing the resulting edge map further through advanced computer vision techniques.
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
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…
No need. If you skim the article, you’ll see it only works on sharp edges. The letters being read here are metal cutouts.
Note to self: “decorate with crystal balls…” Got it!
Lemmy is so damn salty. All you did was explain what was said in the article and some guy disliked your comment lmao
Yeah, but it was only one person. No big deal.
There he iiiiis
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.
This is super creepy
“baby i can read letters through walls”
the letters
Yeah sure why not.
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