Stingray devices and the seeming paucity of civilian countermeasures

Kevin Collier: This Is How Many Stingray Devices Exist in Trump’s America

Surely there must be at least the theoretical possibility of a warchalking technique capable of differentiating spoofs from legit transponders. Are there still people who apply hacker ethic to solving technical problems, though? It seems we’re living in very careerist times, in which activities that aren’t monetized are activities that simply don’t take place.