Secrets of the Browser Developer Tools - Secrets. Security Weekly Podcasts. Remote-exploit.org. Insecure.Org - Nmap Free Security Scanner, Tools & Hacking resources. Penetration Testing Software | Metasploit. Irongeek.com. Hackers about hacking techniques in our IT Security Magazine. Darknet - The Darkside - Ethical Hacking, Penetration Testing & Computer Security. Hackers Center Security Portal.