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 the Form widget menu and open 'Security' tab. Activate a password protect option and set a login and a password.
In order to protect your database go to the Table widget menu. Find the Security section and set a login and password for your database.
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.