On created pages on the CP websites, you can require a password to view the contents of the page. To get started, make sure you are logged in and head to the page you would like to password protect.
In the top admin bar, click on 'Edit Page'.
On the red page bar, click 'Edit'.
Under 'Page Permissions' find the 'Password Protected' field. Add in the password you would like users to type in to see the contents of the page.
(Try use a password that is hard to guess with numbers and a symbol).
Click 'Save' to apply the changes.
Users will now be presented with a password box to view the content.
To remove this, simply go back in to the edit f the page and delete the password.