The purpose of the looking at the future...is to disturb the present!

Gaston Berger (1896-1960), francuski futurolog

It Looks Like a School Bathroom Smoke Detector. A Teen Hacker Showed It Could Be an Audio Bug

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.
Link :
https://www.wired.com/story/school-bathroom-vape-detector-audio-bug/