The announcement that the DEA was authorized to conduct covert surveillance on protestors got me thinking about how one could protect oneself against that kind of mass surveillance. In this post I give a quick overview of Stingray technology, the implications of its use at a protest, how aerial stingrays (“dirtboxes”) extends its mass-surveillance capabilities, and how the Librem 5’s hardware kill switches give you control over where, when and how you are surveilled.