David Kerb has worked in the computer security arena for the past ten years. He has specialized in Reverse Engineering, Malware research, and penetration testing. During the past ten years he has worked with various places including Offensive Computing, a Malware Research Company. He is currently helping found Attack Research which is set up to help understand the internals of attacks. Dave Kerb has focused on *nix systems and enjoys figuring out how to abuse various trust relations between *nix systems.