I have a Windows Server 2008 setup behind a firewall without any port forwards to the server. I do have an Untangle Internet Security Appliance with an OpenVPN connection setup for (2) remote users. The remote users run a 'RemoteApp' from the server but do not actually log onto the server with a Terminal Server session. I have installed monitoring software on the server. One of the daily checks is a 'Hacker' check, which has been reporting more than (100) unsuccessful login attempts within a (24) hour period. Should I be concerned about the failed logins? What should I do to stop the failed login attempts?