When you don't need anyone to access your web-form you can set login and password. This way you protect your form by submitting database information from wrong users
You can password protect both form and table widget in QuintaDB.
Just go to 'Security' menu. Activate a password protect option and set a login and a password.
When the form or table opens you will see a login form.
If you enter the correct login and password you'll see your password protected form or table widget.
Otherwise you'll see a standard access denied message.