Comment by Scoundreller

> especially on any communications device that has a 'selective calling' feature.

I wonder if it’s even dumber than that. Entirely separate from the paging network and tuned to listen for a pulse at a specific RF frequency and then blow up.

Also gives the ability to target certain geographic areas.

But even if listening to pager spectrum, the paging network is incredibly insecure. Anyone could send out fake pages with the right RF setup (e.g. from a drone).