Dr. Andrew Liaropoulos (RIEAS Senior Analyst) won the NATO Cyber Defense Competition and participated in a seminar on cyber-security that took place in the NATO Headquarters in Brussels. Recent cyber-incidents in Estonia 2007, Georgia 2008 as well as the cases of GhostNet and Stuxnet, vividly demonstrate the complex nature of cyberspace. Cyber-attacks cross borders, they are asymmetric, sophisticated and hard to trace. NATO has to adjust to the new security environment and develop cyber defence capabilities.