With this Add-on for Super Forms you can password protect your forms from being submitted. You will also be able to hide the form from logged out users, and also from specific user roles. You can also display a message based on these conditions to the user.
Click here to read more about this Add-on.
CompatibilitySuper Forms v2.8+
Nov 16, - Version 1.0.3 - Added: Option to hide form from logged in users Jun 21, 2017 - Version 1.0.2 - Improvement: if user didn't select option for none logged in users lockout display at least an error - Improvement: error message is now positioned inside the form element, so it will pickup color styles for the error message Jun 20, 2017 - Version 1.0.1 - Added: option to display error message regarding user not being logged in after the form is submitted (instead of on form init/pageload) Mar 17, 2017 - Version 1.0.0 - Initial release!