Commercial quadcopters have been on the mainstream gadget scene for 15 years, proliferating across industries and among hobbyists. There’s a swanky DJI store on New York City’s Fifth Avenue, and you probably have a neighbor, not to mention a roofer, who owns a drone. So when researchers at the embedded-device security firm Red Balloon started seeing surprising quadcopter accessories on Chinese shopping platforms like Temu and AliExpress, they didn’t think much of it at first. As with any popular gadget type, there’s a whole ecosystem of niche, wacky, and comical…
