Our Post Grid Combo plugin will help you query posts by their password. This article will show you how to query by post password.
Click on the Query Post tab.
Now, by clicking the Choose button, you can search for “Password.” Here you will find some options; click your desired option.
For Has Password:
You can control the visibility of password-protected posts by using the “Has Password” menu.
For Post Password:
In the Post Password menu, you must add a password to show posts in a Post Grid.