How does the Corona-Warn-App work and what does it do?

Video 01:55

Corona-Warn-App How does the Corona-Warn-App work and what does it do?

The Corona-Warn-App helps to quickly disrupt chains of infection. It turns your smartphone into a warning system. The app informs us if we have had contact with a person diagnosed with COVID-19. It protects us and others around us, as well as our privacy.