The Evader was released at Black Hat 2012. It is a freely available test and research tool for measuring middle-box security device’s protocol analysis capabilities. The Evader is an excellent tool for anyone doing defensive security to find weaknesses in defenses and it is suitable for penetration tests and security audits. In the presentation the speaker will go into technical details of the Evader and evasions and disclose evasions that still work with most of today’s security boxes. Olli-Pekka "Opi" Niemi has been working in the area of Internet security since 1996. He has been doing offensive security as a penetration tester and defensive security as system administrator. Since December 2000, he has been working for Stonesoft R&D developing intrusion prevention systems. He is currently heading Stonesoft’s Vulnerability Analysis Group (VAG). His main R&D interests are analyzing network based threats as well as evasion research. In his free time the family comes first, but he also enjoys fishing, horseback riding and playing the piano. Opi has been giving presentations in various conferences such as T2, DeepSec and SIGCOMM.Olli-Pekka "Opi" Niemi Olli-Pekka "Opi" Niemi