With 20 years of experience, throughout his career he has worked with possibly all types of networking technologies on the enterprise and service provider sectors and the security involved in these technologies, especially 802.11 WiFi. He has also developed the Incident Response practices at two networking hardware vendors. Luiz is the creator and co-founder of the y0u Sh0t the Sheriff and Silver Bullet security conferences held in Brazil and has worked on the wireless infrastructure of Blackhat, DefCon, Computer Chaos Congress and Shmoocon. As a public speaker, he has addressed numerous top-level conferences including DEF CON, FIRST, H2HC, HitB Malaysia, Layerone, ShmooCon, BlueHat, THOTCON, ToorCon, SecTor, BayThreat and others. Luiz currently holds many certifications in the information security field.