[dogman144]

Reads like they’re doing one of several way to get mobile device IDs, and then x-ref those against anon’d adtech datasets that anchor on the mobile ID.

If your device privacy is a mess, mobile ID links you to all the good and bad things you do on a phone.

Had no idea this was part of the tool options, but backbone cell network makes sense.

Other TTPs I’d read about was variations on geo-fenced adserving to phish a mobile ID basically via user interaction or scroll past the ad. Small enough geofence and do it a few times, one could safely figure out the user being the ID. Googling “RTB surveillance” or “DSP surveillance” are ways into the topic.

Scary stuff! Pair that with this tech has been working for years, and is international. Frames a bit differently every action by a public figure - also at risk via the same threat model.

Also long have wondered what data analysis like this is done on technical forums… ran by a VC firm… with a lot of insider context (product market fit?) in the comments.