That seems great. I've read a comparison of different approaches to contact tracing<i>. The one chosen by Singapore seems to be the best compromise between privacy and effectiveness: the data stays on your phone, but you can trace and warn people you have contacted.<p></i> in Italian - <a href="https://www.wired.it/internet/web/2020/03/24/coronavirus-app-contact-tracing/" rel="nofollow">https://www.wired.it/internet/web/2020/03/24/coronavirus-app...</a>