Privacy has become a very important issue in modern society, with companies and governments constantly abusing their power, more and more people are waking up to the importance of digital privacy.
In this community everyone is welcome to post links and discuss topics related to privacy.
[Matrix/Element]Dead
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It seems to me that switching SIMs provides little privacy benefit, because carriers, data brokers, and the adversaries of privacy-desiring people whom they share data with are obviously able to correlate IMEIs (phones) with IMSIs (SIMs).
What kind of specific privacy threats do you think are mitigated by using different SIMs in the same phone (especially the common practice of using an "anonymous" SIM in a phone where you've previously used a SIM linked to your name)?
where you’ve previously used a SIM linked to your name
Don't do that then. Also consider that people buy and re-sell used phones. The same IMEI is not a guarantee it's the same user. Privacy isn't necessarily about being absolute, sometimes it comes in shades.
It doesn't take long to associate an IMEI to a new user.
Then there's apps, accounts, etc. Gobs of data out there to associate a person - including tower and wifi connection data, which would easily associate a person with a device with a location with a time stamp.