answer:Virtual Private Network. Access through a firewall or other security devices like a router, but it is usually to get through the firewall. Used mostly on corporate networks. Generally your data stream both ways is encrypted for security. Our version requires use of a token and password, so that when you are about to log in you get a four digit code from the token that is synchronized with the server. If the number string matches, you are admitted, if you, you are out of luck. SRM