NordVPN is a consumer and prosumer VPN from Nord Security, a cybersecurity company headquartered in Lithuania. It launched in 2012 and is marketed as an all-in-one security app: encrypted tunnels plus optional Threat Protection (malware, phishing, tracker, and ad blocking), Dark Web monitoring, and related extras depending on plan and platform.
It exists as a large-network European-built VPN for people who want polished apps, Meshnet, and extras rather than a numbered-account privacy boutique. Traffic is encrypted to a NordVPN exit. The flagship protocol is NordLynx, Nord's WireGuard-based implementation. A single account may use up to ten simultaneous connections.
The concrete differentiator is Meshnet: an encrypted peer network for remote LAN-style access, file sharing, and gaming on top of the consumer VPN. The published data controller for the consumer service is nordvpn S.A. in Panama, with NordSec B.V. in Amsterdam as the EEA representative.