shawfactor

Publicly locked posts or pages functions exactly the same as published. EXCEPT only user with manage_options capability (usually only admin users) can edit the post or page.
Privately locked posts or pages functions exactly the same as private. EXCEPT only user with manage_options capability (usually only admin users) can edit the post or page.
In both cases only users with manage_options can assign a post or page to the above statuses. As a webmaster this functionality may be useful if there are posts or pages you do not want editors or similar roles amending.
Did you find this plugin helpful? Please consider <a href="https://wordpress.org/support/view/plugin-reviews/lh-locked-post-status" rel="ugc">writing a review</a>.

LH Locked Post Status

Creates two new posts statuses. Publicly locked and Privately locked.

This plugin creates an additional post status ‘restricted’. This status functions similarly to setting a post, page, or cpt to private. However with this plugin you can specify which roles have access to restricted posts
This is required because natively WordPress follows a publishing/editorial paradigm and therefore the ‘read_private_posts’ capability is only granted to admins and editors.

LH Restricted Post Status

Restrict access to posts, pages, and cpts by user role

LH Locked Post Status vs LH Restricted Post Status