End-to-end encryption (also known as E2EE) is an important digital protection feature for online security and privacy. With E2EE, every single message is encrypted. Only sender and receiver can read this message, at its “end”, in plain text. End-to-end encryption protects the:
- Confidentiality: Only sender and receiver can read the messages in plain text.
- Authenticity of a message: The authenticity of the sender is verified. It is really the person who is indicated as the sender.
- Integrity: The message cannot be changed unnoticed (by third parties) on its way between sender and recipient.
Examples of E2EE are messaging services like Signal, Threema or WhatsApp, encrypted email or secure cloud storage like Tresorit.
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