= Private Tunnel = [https://www.privatetunnel.com Private Tunnel] (previously known as ''!ShieldExchange'') is an anonymizing service provided by [http://openvpn.net/index.php/about/about-us.html OpenVPN Technologies, Inc]. It also protects against various network threats by securing the traffic from user's computer to a Private Tunnel server and back. For details, refer to the [https://www.privatetunnel.com official product page].