Konstantinos Karagiannis is the Global Technical Lead of Ethical Hacking for BT Security, and has been with the team for over eight years. A Principal Consultant, he specializes in hacking banking and financial applications. Prior to working at BT, Konstantinos worked as a consultant in application security and also tested security products for PC Magazine. Konstantinos started as a Physics major at Polytechnic University, and is probably the only working ethical hacker who is currently under contract to write a book that explains Quantum Computing to the masses.