Your ISP can theoretically use your home Wi-Fi router to track your movements.

This requires ancillary hardware that isn't present on wifi routers, and then it also requires wifi devices spread around the place to provide a signal source for human bodies to distort, and then it requires significant computational hardware that also isn't present in common home wifi routers.

Not to say that the general method can't be used for basic presence detection - Philips Hue ZigBee devices can use the variations in the background signal strength of ZigBee devices they can see around them to infer that someone is in a room, so they can switch lights on/off automatically. But it requires multiple devices in a room for it to work reliably and they need calibration as well.

Ditch the stationary routers. Buy a mobile router, tape it to the back of your phone and Bob's your uncle. /j

Orwell just turned in his grave.

Just because something is possible, doesn't mean that its in widespread use. TEMPEST has been around for decades, but that doesn't mean its actually practical to do so, especially when it comes to widespread implementation.

There are more important things to worry about.

Oh man I'm glad I'm using an open source firewall with no WiFi and dedicated access points which have no access to the internet

i think this is related to this new app calle ruview and i think this is greatly exxagerated. not only you need a router, you need ESP32 nodes, plus you need to be relatively close to the router or have multiple router the bigger the location you're trying to scan. and i don't see how you isp would be able to do this from far away...

https://github.com/ruvnet/RuView

Not my walls, cant even get signal through them

The paper was link week or month ago but this need a lot of train data to even recognize room let alone person. Possible but not feasible.

FWIW, Through-the-Wall surveillance (TWS) was discovered waaaay back. Here's a few:

1.) (1842) American physicist, Joseph Henry, noticed that the discharge of a Leyden jar in his first-floor laboratory successfully magnetized needles in the basement, passing through two 14-inch-thick ceilings

2.) (1990s) "Through wall sensing addresses the desire to see inside structure to determine the layout of buildings, where occupants may be, and even identify objects within..."

3.) (< 2005) DARPA's VisiBuilding handheld "...useful during a range of operations—from pre-mission planning to find which buildings should be searched, through post-mission analysis to find hidden objects or people."

4.) (2006) "...the TimeDomain system, which uses ultrawide band radar TWS technology. Because radar currently is blocked by metal walls or aluminum-backed insulation, an acoustic capability would allow the TWS device to provide some surveillance capability to penetrate through those walls.

Etc., etc.

p.s. IIRC, hats made of tinfoil would not only fail to deflect incoming "mind-control" signals, but they'd create sort of a convection oven on your brain by reflecting said waves back down afterward. Just sayin'.

You don't justify "Wi-Fi can be used to track your movements". Sure, it seems plausible that radio waves can be used to detect an individual's location, but does anyone have the infrastructure, organization, funds, will, and power, to track the generic "you", the "you" at scale, as implied in the post title?

Do be careful with your wording.

"theoretically" is doing an enormous amount of heavy lifting here... tracking specific identifiable people in this manner (especially when multiple people are present) is about as close to sci-fi as we can get at this moment in time.

where is the vibecoded github repo