A pair of hackers found that a vape detector often found in high school bathrooms contained microphones—and security weaknesses that could allow someone to turn it into a secret listening device.Photo-Illustration: Wired Staff; Nyx/Getty ImagesA 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 Wi-Fi—“using the school network as a lab,” as he puts it—wh...