umlaut Corona App


Security test German Coronavirus Warning App achieves top result

App passes extensive security check by umlaut and connect

Aachen, 2020/08/05 – Since its launch in June 2020, the German Coronavirus Warning App has counted around 16.5 million downloads - with an upward trend. From the very beginning, the app's security has been the focus of public discussion: German citizens are worried about their data and fear that they can be tracked at any time. In the joint security test by umlaut and the magazine connect, the German Coronavirus Warn App now achieves top results: The app receives the rating "outstanding" (iOS) and "very good" (Android). Hakan Ekmen, CEO Telecommunications at umlaut: "I am very happy that we can certify the app a very high security level in both operating systems. Deutsche Telekom and SAP prove that security are very important to them. We are happy to contribute with our test results to make the App even more secure for its users ".

Our security experts find no major anomalies

In the iOS version, no conspicuous features were observed in the category data security, in the Android version there was only a small theoretical weakness. There is a slight potential for improvement in the security of data traffic in both versions, although this is somewhat more pronounced in iOS. Exemplary: Our testers had no complaints about identity protection - it scores full points in both versions. In determining the source code security, the umlaut experts were supported by the fact that Telekom and SAP had created the apps as a publicly visible "open source" project anyway. When analyzing the fully compiled apps, however, it became apparent that both apps should use the most recent versions of the libraries in use, with Android there is a further recommendation for improvement.


Hakan Ekmen

CEO Telecommunication


+49 151 57133235