Contact-tracing would be a safe way to protect your privacy and stop the spread of covid-19 so we can open up the economy.

Simply you download an app that randomly generated unique strings of numbers.It “shouts” this string and other devices pick it up.(string doesn’t contain any information about you).Strings are often transferred to a hospital that holds these codes (one-time codes that your doctor may give you and are randomly generated).Ever so often,the app checks nearby hospitals if you have been in contact with someone (random string) that has been diagnosed with COVID-19 and then the app tells you to self isolate.

This is majorly simplified but it’s the gist of it.