[mananaysiempre]

A modern smartphone is a mishmash of proprietary, closed-source, burn-before-reading secret wireless stacks, and unsurprisingly they all suck.

I can’t really speak about the cellular parts. (Although the fact that your SIM—including your eSIM—is a standalone computer with over-the-air installable applications, arbitrary access to the cellular network, and zero end-user ways to inspect it fills me with dread simply on general grounds. Oh and on all networks pre 4G the base station is not authenticated. And the auth implementations on 4G are often completely broken, especially once roaming enters the picture.)

But the Wi-Fi and Bluetooth stacks are wide open to everybody within 10s to 100s of metres of you who wants to grope them, every minute of your life. And given there’ve been pretty spectacular exploits by (smart and knowledgeable) randos even with the difficulty of reverse-engineering them as a rando, I feel fairly confident in expecting them to be a horror show internally.