I already have one tracker app installed as I’m prepared to relinquish privacy in the midst of a crisis. If there’s a more private way of doing this, I’m all in favour..:
[…] The proposed app would therefore use Bluetooth to record proximity with other users. Data generated by those contacts would be encrypted and stored only on a user’s device. Those records are never accessible. However if a user tests positive for coronavirus, they can be sent a one-time code that allows sharing of their proximity history. The group’s protocols will work across borders, meaning individual nations can run its offerings but still share data to follow the virus on its travels.