End-to-end encryption: What is it and why does it matter?

Encryption is a fancy term for the process of encoding data in such a way that only the intended recipient can decode and see it. Encryption software is the smart stuff that converts your communication to what is known as ciphertext on the internet. Without the unique key, if someone other than the intended receiver intercepts the communication, they will be unable to decipher it.

What types of encryption exist?

Encryption may be classified into three broad categories:

1) Symmetric encryption

This occurs when a private encryption key is used, with two “sets” of the key—one for the sender and one for the message’s recipient. Because the key must be exchanged between the two parties, this creates a security risk if the message is transmitted through an insecure tunnel. An interceptor may seize the key and use it to decipher the communication. NordVPN runs all of their servers via their ultra-secure tunnel, which eliminates the possibility of key theft on our watch!

2) Asymmetric encryption

Asymmetric encryption is the next level going forward. This method utilizes two keys rather than the single key used in symmetric encryption. With two keys—one public and one private—the sender and recipient share the same public key, but each side has its own unique private key as well. This message may be viewed and decoded only by an individual who has both private and public keys. Even if someone intercepts the communication, they will be unable to decrypt it using just a public key. However, if a hacker intercepts and swipes both public and private keys, he or she will be able to decipher the communication.

3) End-to-end encryption

End-to-end encryption (E2EE) is the gold standard of security. NordVPN has one of the strongest encryption levels available for a VPN.

End-to-end encryption occurs when your online communications (sent through Telegram or another comparable messaging service, for example) are secured on both ends of the network when you send the message and when your friend or loved one gets it.

NordVPN employs military-grade encryption that is impenetrable. It makes use of a high-grade 256-bit key and generates a total of 2^256potential combinations. There is no supercomputer capable of cracking this kind of key without requiring an endless (or almost infinite) amount of time.

What is the point of end-to-end encryption?

This is significant since it implies that no intermediary servers can decode (read, intercept) your communications. Not your internet service provider, not a government spy, and no other third party. Specifically, for the designated recipient.

This is critical since interceptions of unencrypted messaging services through insecure servers are a leading source of massive data breaches.


When you connect to NordVPN’s patented, private “zero-knowledge” DNS server, you not only receive the advantage of their military-grade, end-to-end encryption, but also the added benefit of utilizing a VPN with some of the most robust security capabilities available. Their rigorous no-log, no-track policy protects you from A to Z, on any of our servers located anywhere in the globe, and their encryption is top-notch.

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