Today Google bricked my Chromebook by force-installing a hidden extension that trains a machine vision model on the contents of my screen without my consent, making the whole machine too hot to touch, and I am once again begging someone, anyone, to remove Chrome from Google by any means necessary.
The Electronic Frontier Foundation has released an open source project called Rayhunter. It is designed to run on an inexpensive (~$20) mobile hotspot and look for signs of mobile spying devices called cell-site simulators. Also known as Stingrays or IMSI catchers, they masquerade as legitimate cellphone towers, tricking phones w/in a certain radius into connecting to the device rather than a tower.
https://www.eff.org/deeplinks/2025/03/meet-rayhunter-new-open-source-tool-eff-detect-cellular-spying

Rayhunter is a new open source tool we’ve created that runs off an affordable mobile hotspot that we hope empowers everyone, regardless of technical skill, to help search out cell-site simulators (CSS) around the world.