BERLIN—Germany launched a CCP virus tracing app on June 16 that officials say is so secure even government ministers can use it, though developers acknowledge it isn’t perfect yet.
Smartphone apps have been touted as a high-tech tool in the effort to track down potential COVID-19 infections. Experts say finding new cases quickly is key to clamping down on fresh clusters, especially as countries slowly emerge from lockdowns and try to avoid the second wave of infections and deaths.
