I'm working on a site that seems to have page protection enabled on it, but I have no idea how it has been implemented. There doesn't appear to be a plugin installed that is doing it, and the
mu-plugins folder does not contain anything.
I was wondering if this is a built in function of WordPress that needs to be enabled somehow. Could someone please enlighten me?
Here is a screenshot, if it will help, when a new page is being added or edited: