Researchers have discovered cryptographic vulnerabilities in Swiss-based secure messaging application Threema that may have allowed attackers to do things like break authentication or recover users’ long-term private keys. The vulnerabilities have been fixed and Threema has since switched to a new communication protocol they designed with the help of external cryptographers. About Threema Threema is a paid and proprietary end-to-end (E2E) encrypted instant messaging service that can be used via iOS and Android applications, as … More
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