"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...
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This is exactly why I don't store my passwords as giant metal 3D cutouts of letter shapes
130 2 ReplyI need to stop but it’s just so convenient.
48 0 Replybut how else can you remember them
20 0 ReplyI don't even know any of my passwords
16 1 Reply
The tech to scan objects in a room using WiFi is not new. It's very unsettling.
59 1 ReplyI spy, with my little wifi...
44 0 ReplyAnd here I am thinking that hanging my passwords on the wall as art was hack proof. I guess it's time to redecorate.
32 0 ReplyYou 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.
7 0 ReplyI think your fag packet calculation has got a power of ten wrong somewhere. Wi-fi is GHz so that would be on the order of centimetres I think.
6 0 ReplyWhat if I use an awesome font like Comic Sans and round the faces like party balloons? Still visible?
2 0 Reply
Permanently Deleted
25 1 ReplyIf we're seeing it now, the government has probably been using it for years.
20 1 Reply
This is vaguely similar to Van Eck phreaking.
13 0 ReplyLucius Fox hates this
10 0 ReplyThis is super creepy
8 0 Reply"baby i can read letters through walls"
the letters
8 0 ReplyAre 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...
6 0 ReplyNo need. If you skim the article, you'll see it only works on sharp edges. The letters being read here are metal cutouts.
22 1 ReplyNote to self: "decorate with crystal balls..." Got it!
9 0 ReplyLemmy is so damn salty. All you did was explain what was said in the article and some guy disliked your comment lmao
6 1 Reply
Faraday cage?
8 0 ReplyNo need for lead. Just make something similar to those microwave door mesh plates and embed it in with the insulation.
5 1 ReplyWell, if it's using WiFi, then anything you do will also kill your WiFi signal. So, bare minimum, no WiFi router, only LAN lines.
2 2 Reply
Yeah sure why not.
3 0 ReplyRadar arrays with consumer wifi parts? I don't really see the point.
1 0 Reply