Andy Greenberg@agreenberg@infosec.exchange
The Halo 3C is a smoke/vape detector that Motorola sells for use in school bathrooms. It also has microphones inside.
A teen hacker found them at his school, and with another security researcher has now shown they could be hacked for audio surveillance.
https://www.wired.com/story/school-bathroom-vape-detector-audio-bug/
Leeloo@leeloo@chaosfem.tw
@agreenberg@infosec.exchange
A microphone doesn't get put into a smoke detector by mistake. It can't be removed with a software patch, and even if it's disabled by the patch, will absolutely be enabled again when needed for the reason it was added in the first place.