w3af - w3af is a Web Application Attack and Audit Framework
HackerOne - HackerOne provides a platform designed to streamline vulnerability coordination and bug bounty program by enlisting hackers.
Shodan - Shodan is the world's first search engine for Internet-connected devices.
Intruder - Intruder is a security monitoring platform for internet-facing systems.
Zed Attack Proxy - The Zed Attack Proxy (ZAP) is an easy to use integrated penetration testing tool for finding...
Forcepoint Web Security Suite - Internet Security