Apropos of nothing, a conductive mesh with 1/2" holes suffices to block 2.4 Ghz signals, while 1/4" holes suffice to block 5 Ghz signals. https://www.homedepot.com/s/hardware%20cloth
Your WiFi Can See You
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Re: Your WiFi Can See You
#12I feel like “putting wifi in my home” is similar to “putting bodies that emit heat in my home”. Neither of which implicitly grant law enforcement to come and observe either through the walls of my home. I am not a lawyer, nor am I familiar with the SCOTUS case referenced in the article. But I really hope it is precedent enough to make any judge throw out any such violations without any hassle.
Still enables parallel construction. They can illegally search and surveil you without your knowledge and there's not much anyone can do about it. They can't submit any findings as evidence but they can totally anonymously tip off other authorities or something.
It must be physically impossible to violate our privacy or it doesn't work.
Re: Your WiFi Can See You
#13Are there any home solutions to wifi sensing/location sensing at home for diy iot purposes?
Re: Your WiFi Can See You
#14Apropos of nothing, a conductive mesh with 1/2" holes suffices to block 2.4 Ghz signals, while 1/4" holes suffice to block 5 Ghz signals. https://www.homedepot.com/s/hardware%20cloth
Hah, I remember having a tiny condo and was unable to get wifi throughout it because it was constructed with a metal-mesh backing[1] instead of wooden lath for the plaster. Was like a 60db drop putting a device on the opposite side of a wall made from one of these.
1: Kind of like this https://www.homedepot.com/p/Gibraltar-Building-Products-3-4-...
Re: Your WiFi Can See You
#15Are there any home solutions to wifi sensing/location sensing at home for diy iot purposes?
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Re: Your WiFi Can See You
#16Earlier quoted context omitted.
I disagree. The trajectory of technology generally is: possible -> prototype -> product -> common -> common and cheap If Wi-Fi surveillance were to become common and cheap, other methods would be produced to make data harvesting common and cheap to the surveillance state/bigco. The best way to avoid that dystopia is to safeguard it early in the process.
What I'm trying to get at is, even if this type of Wifi surveillance becomes commong and cheap, it still requires access at a low level to the wifi router itself. Which should be hands-off in the first place. It's like having cameras in your house on your local network... if the police could legally hack into your network, they could watch you on the cameras to see if you are committing crimes! But... the point is th…
> Which should be hands-off in the first place.
Wi-Fi access points are often provided by ISPs. ISPs, especially in the US, are not to be trusted; https://security.stackexchange.com/q/71834 is just one example of that.
Re: Your WiFi Can See You
#17If someone is worried that their government could be flashing the firmware of their WiFi router to use the beamforming antennae of the router to track them walking around their home.... Then they should be way more worried that their government is using any access to their wifi router at all. Like, you got way bigger things to worry about at that point, right? There are a million surveillance side-channels that could…
The linked paper "Et Tu Alexa?" uses a single smartphone positioned outside of the property
> We show that just by sniffing existing WiFi signals, an adversary can accurately detect and track movements of users inside a building. This is made possible by our new signal model that links together human motion near WiFi transmitters and variance of multipath signal propagation seen by the attacker sniffer outside of the property.
Re: Your WiFi Can See You
#18Tomographic detection has been around for some time. There was a company that commercialized this and had a more or less real-time Harry Potter style “Marauder’s Map” of your home for a security system but they did a lousy job commercializing it.
See a crappy demo of the Xandem solution: https://youtu.be/0lnfOnZD6d8?si=1QqIO0mvHsP4mj5n
Their Xandem home product was fantastic, though failed commercially due to the price.
Re: Your WiFi Can See You
#19If someone is worried that their government could be flashing the firmware of their WiFi router to use the beamforming antennae of the router to track them walking around their home.... Then they should be way more worried that their government is using any access to their wifi router at all. Like, you got way bigger things to worry about at that point, right? There are a million surveillance side-channels that could…
> Then they should be way more worried that their government is using any access to their wifi router at all.
We should be worried about ISPs too. They give themselves access to their customer premises equipment. I had to hack their router to put it into bridge mode and then use another router with software I control to connect.
Re: Your WiFi Can See You
#20Are there any home solutions to wifi sensing/location sensing at home for diy iot purposes?