You've been using Trellix Web, and after upgrading to CSB you discover that the Password Protect feature is no longer available. This feature allowed you to require visitors to enter a password in order to view certain pages of your web site.
Solution:
Globalscape, for whatever reasons, dropped the Password Protect feature when they released CuteSITE Builder 3.0.
However, there are alternatives methods for creating a Password Protect type of feature.