HackerOne - HackerOne provides a platform designed to streamline vulnerability coordination and bug bounty program by enlisting hackers.
Wordfence - Comprehensive security plugin for WordPress.
Intruder - Intruder is a security monitoring platform for internet-facing systems.
iThemes Security - Security plugin that provides over 30+ ways to secure and protect your WordPress site.
Forcepoint Web Security Suite - Internet Security
NinjaFirewall (WP Edition) - A true Web Application Firewall to secure and protect WordPress.