You can secure communication by installing the Chisel Add-on which allows Secure SSL communication via port 12843.
There are two installation files that you need to download from https://support.deepnetsecurity.com/visit.asp?pg=download/dualshield

computer-logon-chisel-agent-addon-installer will need to be installed on the same machine you have installed the Computer Logon agent.
windows-computer-logon-chisel-client-addon-installer will need to be installed on all the machines which are protected by the Computer Logon Client.