The creators of Threema have come under fire for their public response to a security analysis carried out by researchers at the Swiss university ETH Zurich.
Threema is an open-source secure messaging app. More than 7,000 on-premises customers and more than 10 million users, according to the Swiss company that makes Threema. The Swiss government and German chancellor Olaf Scholz are reportedly clients.
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Seven types of attacks that could be launched by an attacker who can intercept communications, one who has compromised a server, or one who has hacked the targeted user’s device were identified by ETH Zurich researchers who conducted an analysis of the application and its communication protocol last year.
Read More: Threema Under Fire After Downplaying Security Research