this post was submitted on 18 Aug 2025
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[–] tal@lemmy.today 2 points 7 months ago* (last edited 7 months ago)

In this article t least they’re only talking about the cell providers selling location information, and using a vpn wouldn’t help with that. You still need to connect to a cell provider, they still have a continuous detailed track of your location.

Yes, but what I'm talking about in my comment is that there there doesn't need to be an unbroken ID over a long period of time and they don't need to have any direct link to your identity. They have an IMSI and an ICCD. They can link that to at least approximate location. But they don't have to have data tying it directly to your identity, and that pair does not need to be linked to someone for many years, can be swapped out, even if most people do typically have that link today.

EDIT: And I'm not asserting that this is a hard guarantee that it's impossible to link that to identity. I mention that it may well be possible to deanonymize that data by correlation through other databases. For example, let's say that someone could correlate data from an airline's flight data that is correlated with personal identity and a cell provider sells sufficient of their cell data to link location to air travel data. Two flights, if someone doesn't leave their phone at a given location, is probably enough to deanonymize someone. ALPR data is probably another major way to harvest data that might be useful in cross-correlation with data like this, and at least in the US, there are no (national, dunno about state) laws against setting up an ALPR node wherever anyone who wants pleases. But it's enough to ensure that a personal identity and the data that the cell provider has are not directly immediately linked.