End-to-end encryption is an action of applying encryption to messages on one device such that it can be decrypted only by the device to which it is sent. The message travels all the way from the sender to the receiver in encrypted form. The main advantage of end-to-end encryption is that the transmitted data is restricted to anyone but the recipient. It ensures the privacy and integrity of your communication.
End to end encryption is important because in this your data is protected against hacking or theft: even if a malevolent person succeeds in entering your system or stealing one of your devices, your data will remain unreadable. You even have control over who is authorised to read your messages and files.
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