Using your phone’s microphone to track possible COVID-19 exposure

Signals sent and received from cell phone microphones and speakers could help warn people when they have been near someone who has contracted COVID-19, researchers say.
In a new paper, researchers described a system that would generate random, anonymous IDs for each phone, automatically send ultrasonic signals between microphones and speakers of phones within a certain radius, and use the information exchanged through this acoustic channel for contact tracing.

Billions of people could be invisible in COVID-19 contract tracing efforts utilizing smartphone apps

A West Virginia University consumer law expert says recent announcements by Apple and Google that they’re developing a system to enable widespread contact tracing in an effort to contain the COVID-19 pandemic raises significant questions beyond whether such a plan…