We have had numerous data breach, amazon, google, Facebook selling our data to the highest bidder. We already dont have really any privacy. But once the lid is off this this will further guarantee privacy will cease to exist for anyone. Whose to say what is being monitored. However, I could see and iPhone/android push an update that will auto add this feature and runs unbeknownst to cell phone owners. Contact tracing is needed but who can you trust?