Over the course of 2013, Iran became one of the most active players in the international cyber arena. Iran’s progress can be attributed to a combination of two elements: a certain easing of the restraints on offensive activity in cyberspace by Iranian decision makers, and a qualitative leap by the Iranian cyber warfare system. The rapid development of Iran’s cyber warfare capability means that Israel and other Western countries must work decisively and systematically to maintain qualitative and operational superiority in cyberspace. The importance of cyberspace for Israel’s security concept and the urgency of creating a “digital Iron Dome” were well expressed by IDF Chief of Staff Lt. Gen. Benny Gantz: “Israel must be on a superpower level in cyberspace…we must not wait with this.”