I’ve been doing development, security, hacking and technology since, well, let’s just say a long time. And yes, I’ve hacked mainframes. I break into systems and and secure systems, often the same ones. I’ve written code with security holes and written code to find security holes. I can program in most languages and OSes and have used most of the hacking tools available. I’ve run programming, architecture, rand multi-colored security teams. I’ve presented and written on security, architecture, privacy, and programming. My day job is to secure systems that are broken into by people who have incentive, time, and money but are owned by people who don’t have money, managed by people who would rather security didn’t exist, written by developers who have impossible deadlines, and run by teams who are juggling tens, if not hundreds, of other programs.