You can take various measures to maximize the security of your CollabNetTeamForge users.
Set up SELinux
If SELinux is active on the machine where your CollabNetTeamForge site is running, modify it to allow the services that TeamForge requires.
Protect integrations with SSL
If you have registered Secure Socket Layer (SSL) certificates, your site's users can use SSL when they set up an SCM integration server.