> The network attach process doesn't use the IMEI inherently by spec, but some cell cores can query for it (for example, to block stolen phones).
How widespread is this practice? Do the major US carriers know my IMEI?
I tend to believe that they do from what I've seen in their web interfaces, and that IMSI rotation alone is basically pointless from a privacy standpoint.
How widespread is this practice? Do the major US carriers know my IMEI?
I tend to believe that they do from what I've seen in their web interfaces, and that IMSI rotation alone is basically pointless from a privacy standpoint.