NinjaFirewall WP+ Edition v4.5.6 – WordPress Plugin
NinjaFirewall (WP + Edition) v4.0.6 – This is a real web application firewall. While it can be installed and configured as a plugin, it is a standalone firewall, pre-installed with WordPress.
It allows any admin blog to take advantage of very advanced and powerful security features that are usually not available at WordPress level but only in application security like Apache ModSecurity or PHP extensions. Suhosin.