Few days ago I meet Russian journalist-in-field. They do research and writing about corruption within chechens republic. Crazy brave person... People who investigate such questions disappears sometimes.
They told to me about tec stuff they use like wireless modems mtk SOC based (to change IMEI), not personalized SIM cards, vpn, signal etc etc. And show me Pixel with unusual Android OS I never saw before. GrapheneOS. Not an Iphone I did suspect but this project. They voted to safety and security, to keep low profile.
Thus I wish to say THANK YOU for this fascinating and important project! Peoples need to sleep safely at night...
After this conversation I feel little involved.
May I ask of proof of concept? How it was confirmed that modems are turned off completely when "Airplane mode" turned on?
Airplane mode is the only way to avoid the cellular network tracking your device and works correctly on the devices we support.