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A comment on Google Gives Feds 1,500 Phone Locations in Unprecedented ‘Geofence’ Search. Parent comment

Re:Google Gives Feds 1,500 Phone Locations in Unprecedented ... by burpsnard on Friday December 13, 2019 @10:22AM (#21782321)
IMSI, IMEI, MSISDN, etc.

Systems to associate 'burner' phones to individuals, with patterns of metadata, have been commonplace for decades

https://github.com/kimgr/asn1ate/blob/master/testdata/public...

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Re:Google Gives Feds 1,500 Phone Locations in Unprecedented ... by 867-5309 on Friday December 13, 2019 @05:59PM (#21786396)
yes those can be used as device ids and in network negotiation. harder to spoof as they're a lower abstraction layer than MAC addresses
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