Security News > 2018 > January > Detecting Drone Surveillance with Traffic Analysis

This is clever: Researchers at Ben Gurion University in Beer Sheva, Israel have built a proof-of-concept system for counter-surveillance against spy drones that demonstrates a clever, if not exactly simple, way to determine whether a certain person or object is under aerial surveillance. They first generate a recognizable pattern on whatever subject­ -- a window, say -- someone might want...

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https://www.schneier.com/blog/archives/2018/01/detecting_drone.html