This video shows a common problem new Kademi users get into.
This is where non-priviledged users (such as created by a contact form) can access sensitive information.
The solution is to use group visibility rules either on the page itself, or on a template so it applies to all pages
Please note that there has been an update to group visibility rules, so the video tutorial will look a little different to your account. On the container settings, click Select Group Visibility to adjust the group visibility settings.