Nir Valtman heads the application security of the software solutions for NCR Corporation. Before the acquisition of Retalix by NCR, Nir lead the security of the R&D; in the company. As part of his previous positions, he was working in several application security, penetration testing and systems infrastructure security positions. Nir is a frequent speaker at leading conferences around the world, including Black Hat, Defcon, RSA, BSides, OWASP etc. Nir has a Bachelor of Science in Computer Science but his knowledge is mainly based on cowboy learning and information sharing with the techno- oriented communities, such as blogging and releasing open source tools (including AntiDef, Cloudefigo and SAPIA).