[TaylorAlexander]

> Why would an actor use Apple as a target vector?

I can only speculate. But if I wanted someone’s location without making some noise, this increased precision would be nice to have over carrier’s coarse location data. Your GPS position could localize you to a building, but your UWB position could perhaps localize you to a room. And actually if the law enforcement agency had a device capable of detecting yours based on its UWB signal, they could find you very quietly.

[jsjohnst]

Using current generation technologies like OTDOA and similar, cell carriers can already localize you to a room in a building in many cases.

Verizon can do down to around 10 centimeter accuracy with their LTE-M network in the best case (don’t have a link to support that handy, otherwise I’d share).