[ExI] Tracking Phone Location IDs offenders

[BillK]

The two people who shut down four Washington power stations in
December were arrested. This is the interesting part:

Investigators identified Greenwood and Crahan almost immediately after
the attacks took place by using cell phone data that allegedly showed
both men in the vicinity of all four substations, according to court
documents.

<https://www.schneier.com/blog/archives/2023/01/identifying-people-using-cell-phone-location-data.html>
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But the interesting comment is that switching off their smartphones
probably would not have helped.

Quote:
There’s a whole lot of surveillance you can do if you can follow
everyone, everywhere, all the time. I don’t even think turning your
cell phone off would help in this instance. How many people in the
Washington area turned their phones off during exactly the times of
the Washington power station attacks? Probably a small enough number
to investigate them all.
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Smartphones??  Just say NO!  :)

BillK