NordVPN protects your Internet traffic with cutting-edge security technologies to provide strong VPN encryption between your device and the server you have connected to.
Normally, if you want to browse the Internet, first you need to connect to your Internet Service Provider (ISP), which then forwards you to the desired website or other Internet resource. It means, all your Internet traffic goes through and can be viewed by your ISP.
A Virtual Private Network (VPN) allows you to connect to the Internet via a remote server run by a VPN service provider. All the data traveling from your computer, tablet or phone is transferred via an encrypted connection, also known as a VPN tunnel. That means all the traffic coming from your device is encrypted, so that it is no longer visible to your Internet Service Provider (ISP).
NordVPN uses AES (Advanced Encryption Standard) with 256 bit-keys. In fact, it was used by the U.S. government to secure classified information and by the NSA to protect national security data, before it became the most frequently used algorithm in symmetric key cryptography. Now it is an ideal option for software applications, hardware, and firmware that require either high throughput or low latency.
Furthermore, NordVPN recommends two different security protocols that provide strong VPN encryption between your device and the server you have connected to. Usually, when you connect to one of the NordVPN apps, it automatically selects the encryption settings most suitable for your speed and security circumstances.
Here you will find more detailed information about each security protocol and NordVPN recommendations for choosing between different VPN encryption types.
The most exciting addition to the NordVPN security protocol family is IKEv2/IPsec. It encrypts and secures users’ traffic by employing high-level cryptographic algorithms and keys. In addition to this, NordVPN utilizes NGE (Next Generation Encryption) in IKEv2/IPsec.
In fact, at the moment the IKEv2/IPsec security protocol cannot be cracked even by the strongest computers. Therefore, it provides military-grade encryption standards, stability, and high-performance speed. For these reasons, it is highly recommended by NordVPN and has been adopted as a default in the NordVPN apps for iOS and macOS.
OpenVPN is a mature and robust piece of open-source software, which provides reliability, online security, and fast VPN experience. It is a versatile protocol and can be used for both TCP and UDP ports. Choose the TCP port as a more reliable option for accessing the web and UDP for faster online gaming and live streaming experience.
OpenVPN supports a high number of strong encryption algorithms and ciphers – to guarantee the protection of your sensitive data, we use AES-256-CBC with a 2048-bit DH key. It is currently used by default for Windows, macOS, and Android.
On the final note, these security protocols have their advantages and disadvantages in certain situations. However, both of them are recommended by NordVPN and are safe options to use if you are concerned with your online privacy and security.
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