The smartphone can now help to better control the spread of the corona virus. This is the idea behind the new free Corona warning app. It is used to inform voluntary users if they have had contact with an infected person. The app sends and receives Bluetooth signals with anonymized identification numbers. Anyone who has tested positive for the Corona virus can enter this in the app. Then a warning message will be sent to those who have been in close vicinity to the infected person. Privacy advocates have no concerns. Security experts advise, however, to only search for the Corona warning app with this spelling on Google Play or in the App Store. Criminals could use “fake apps to imitate the new contact tracking app”, thereby cheating and spying on users, according by the trade magazine CHIP. The Federal Government provides detailed information in many languages at www.corona-warn-app.de
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