This article was produced with support from WIRED.
A couple of years ago, a curious, then-16-year-old hacker named Reynaldo Vasquez-Garcia was on his laptop at his Portland-area high school, seeing what computer systems he could connect to via the Wifi—“using the school network as a lab,” as he puts it—when he spotted a handful of mysterious devices with the identifier “IPVideo Corporation.”
After a closer look and some googling, Garcia figured out that a company by that name was a subsidiary of Motorola, and the devices he’d found in his school seemed to be something called the Halo 3C, a “smart” smoke and vape detection gadget. “They look just like smoke detectors, but they have a whole bunch of features like sensors and stuff,” Garcia says.
As he read more, he was intrigued to learn that the Halo 3C goes beyond detecting smoke and vaping—including a distinct feature for discerning THC vaping in particular. It also has a microphone for listening out for “aggression,” gunshots, and keywords such as someone calling for help, a feature that to Vasquez-Garcia immediately raised concerns of more intrusive surveillance.