NATOChannel travels to Tallinn in Estonia for CyCon – The NATO Cooperative Cyber Defense Center of Excellence’s International Conference on Cyber Conflict. In 2007 Estonia was momentarily crippled by a cyber attack on parliament, banks and the media – an attack that changed the way military organizations around the world viewed their responses to network security, and led to the start of the Center of Excellence. Now, eight years later, NATOChannel asks some of the world’s leading experts in cybercrime how it has developed? How sizable is the threat? And what’s being done to combat it?