UnityVPN Premium OpenVPN Protect and Secure your privacy | Hight Security and Optimum Performance About VPN (Virtual Private Network). VPN or Virtual Private Network is a connection between a network with other networks in private over the public network. or in other words to create a separate WAN actual both physically and geographically so logically form a single netwok, packet data flowing between the site and from remote access to users who do will have encryption and authentication to ensure the security, integrity and validity of the data. because the network is private, where only certain people can access it. Transmitted data was encrypted so that secure and remains confidential even though sent over a public network. To ensure security and data connections, VPN employs several security methods such as : Firewall, Encryption, IPSec, AAA Server.