[garbage_88224]

Your cellular phone modem is both remotely programmable and has full root memory access 24/7.

Let that sink in a bit.

[tptacek]

Your "cellular phone" does not in fact have "full root memory access 24/7". In modern phone designs, the baseband is a USB peripheral. The notion that the closed, secret baseband is a DMA backdoor into AP memory is a message board meme, not engineering reality.

[hjkgfdfgh]

That may be true of Apple, and is true of the PinePhone and Librem, but for the majority of Android devices, that's blatantly false.

On Qualcomm chipsets in particular heavily utilize shared memory for baseband to application processor communication.