Sidecar TV, Plugin Developers

This will protect the user or admin facing wordpress pages. Separate login and passwords can be setup for each.
This isn’t anything fancy, not super secure, just basic and easy. It is called simple after all.

Simple Privacy

A simple way to create a private Wordpress blog with htauth.

smatric

This is a very small plugin that forces users to login before viewing any content. This is done by checking if the user is logged in, and if not, redirecting them to the login page. Users attempting to view blog content via RSS are also authenticated via HTTP Auth.
Modification: use get_site_url() to redirect to the login page properly when WordPress is located in a subdirectory.

Force User Login

A very small plugin that forces users to login to view blog content.

Simple Privacy vs Force User Login