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The COVID Alert app is intended to help tracing efforts in the province to curb the spread of COVID-19. It runs in the background and sends out randomized “codes” every 10–15 minutes via Bluetooth. All data is decentralized, meaning that the information is stored purely on phones and not on a server somewhere. The success of the program does depend on having a certain percentage of the population signed up. In Germany, for example, you would scan a QR code issued by the health authority confirming your diagnosis.