HackerOne - HackerOne provides a platform designed to streamline vulnerability coordination and bug bounty program by enlisting hackers.
Virusdie - All-in-One cloud-based, simple, powerful and gorgeous website security tools built for everyone.
Intruder - Intruder is a security monitoring platform for internet-facing systems.
Sucuri - Website Protection, Malware Removal, and Blacklist Prevention
Forcepoint Web Security Suite - Internet Security
Wordfence - Comprehensive security plugin for WordPress.