Bruno Kos

Bulk Password Protect Post Types allows you to choose one or more post types and set password for all posts within.
<h4>Features:</h4>
<ul>
<li>Automatically “reads” all post types on website</li>
<li>Allows you to set password for all posts within selected post types</li>
</ul>

Bulk Password Protect Post Types

Allows you to protect all posts from chosen post type or types.

Mike Hickcox

Set the time allowed before a password must be again entered for a password-protected post or page. Also, enhance the page password form. 
By default, when you password-protect a page or post in WordPress, a user can get back into that page, without a password, for 10 days. 
With this plugin, you can set your own duration, and allow for better protection of password-protected pages. 
* This plugin allows you to easily change the lifetime of that cookie. 
* Set it to any combination of hours, minutes, and seconds. 
* You can even set it for zero hours, zero minutes, and zero seconds, so users always must use the password to access the page. 
* The page password form is also enhanced for a better look in the website, and shows the user the length of time allowed before a password will again be required. 
* If you create pages with a builder, that system may overwrite the password page created by this plugin, but the times you set will still work on your website.

MC Protected Page Upgrade

Set the time allowed before a password must be again entered for a password-protected post or page. Also enhances the page password form.

Bulk Password Protect Post Types vs MC Protected Page Upgrade