As the system is described there’s no way to flip a switch. Apple/Google could always push a software update that does all kinds of terrible things, but that h

As the system is described there’s no way to flip a switch. Apple/Google could always push a software update that does all kinds of terrible things, but that has always been true and remains true with or without a contact tracing system. It’s a concerning possibility but has nothing at all to do with this system.