Mussa Khonje gave a presentation on penetration testing Zentyal networks at the Zentyal summit in Zaragoza, Spain on October 4-5th, 2012. He discussed how penetration tests are conducted to protect business assets, integrity, availability of services, and compliance with standards. Khonje also demonstrated how tools like Nmap, Nessus, and Metasploit are used in the reconnaissance, scanning, access gaining, and post-exploitation phases of a penetration test by hacking a sample Zentyal network.