As nice scroll is a jquery plugin for WordPress site. This plugin will create a nice scrollbar for your site.

This plugin Adds Crazy Additional Password Protection and Security to your blog.

Allow Categories is a plugin that allows you to permission different user to view only specific categories within your wordpress blog.

WordPress Auth using Google Authenticator is a simple plugin which allows authorization with Google Authenticator tokens.

How does it control the authentication? Login With Wallet is an alternative to the WordPress login and registration process. It automatically adds the Login with Wallet functionality to the WordPress Login Page. Enabling the WooCommerce Option from the Settings page of the plugin will also enable the WooCommerce Login and Registration Forms. Manual settings are always possible such as shortcode, widget, and CSS selectors.

Instantly requires that users be logged in to visit your site. Also serves as a good base for expansion. No interface, just activate and go! Requires PHP5.

Easy to use Wordpress plugin to insert any Ads to your posts and BuddyPress sections.

AS login you can fully customize wordpress login page.

A tiny WordPress plugin to clear all browser data related to the site upon logout (With Clear-Site-Data header).

Cliente de sso para wordpress, este plugin convierte a tu wordpress en el servidor de login de otro wordpress, sin DBs, sin cookies. Servidor wp-sso-server

Secure your site with Two-Factor Authentication (TFA) using the Clickatell SMS gateway.

Use UIC's Bluestem SSO authentication in WordPress.

Servidor de sso para wordpress, este plugin convierte a tu wordpress en el servidor de login de otro wordpress, sin DBs, sin cookies. Cliente wp-sso-client

This plugin allows your users to sign in with VATSIM. VATSIM uses a modified OAuth protocol. The modifications cause the generic OAuth plugin not to work. This plugin is a modified version to work with VATSIM SSO only.

This plugin turns your WordPress website into an OAuth Consumer. It allowsallows your users to sign in with any OAuth provider.

Add TOZNY as an authentication option to your WordPress.

This plugin detects one-time email addresses (disposable email, trashmail, mailinator, 10minutemail) and helps to keep your userbase and comments clean. Free registration at www.block-disposable-email.com needed.

WWPass Two-factor Authentication for WordPress.

AAI@EduHr Authentication plugin for WordPress.