It’s 9:30 p.m. on a Sunday in New York City. People in their apartments in the Inwood neighborhood of Manhattan have their air-conditioners blasting and don’t hear the slight whirr of the two drones hovering 35 stories in the air outside. They’re on the couch watching Family Guy, Duck Dynasty or the Good Wife on their new Web-connected flat-screen TVs. No one sees the hack coming. The drones, launched from the roof of a tall apartment building, have a clutch of electronic gear aboard that can capture incoming digital broadcasts, inject a bit of malicious code to the data portion of the stream, and send it back out on the same frequency. Within a minute or two, residents’ printers are spewing out unwanted coupons and phony Yelp reviews and Facebook posts are being created using their login credentials. Without any trace or sign of vandalism, an entire neighborhood’s smart TV sets have been compromised.