翠星石 (suiseiseki@freesoftwareextremist.com)'s status on Wednesday, 26-Jul-2023 22:49:41 JST
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@jihadjimmy Ehh, I don't think eSIM's are really that much more proprietary than SIM cards.
SIM cards are very insecure, as they contain a microprocessor that runs proprietary software and most SIM cards will run any proprietary program served to it by the mobile tower.
Although you can swap SIM cards, all mobile chipsets have a hardcoded IMEI, so even swapping SIMs sadly has no real privacy benefit.
From the wikipedia hardware, eSIM's seem to be pretty much the same, except the proprietary processor is soldered onto the board instead of being swappable and the network login details can be programmed from a mobile tower.
It's impossible to have a mobile that works as a mobile, while also not revealing the location sadly.
GSM instantly reveals the general location, but the specific location ideally would take a while to determine due to less ability for the tower to detect directionality, but of course LTE is much better at revealing the location and 5G even more so.
I'm not even sure if mobile towers even bother to calculate the specific location, as pretty much all tracking devices have a built in GPS (that cannot be switched off, only asked to go into a low power mode) and you can really just ask such devices for the GPS location via the proprietary software and they'll provide it.
In some countries GSM is still available, but soon enough that will drop to none.