Research on Cyber Space Security Strategy of the United States

Into the 21st century, information revolution speed up development, unprecedented advance of globalization, cyberspace has become a human life, production, and war is highly dependent on the "fifth space", the network space safety aroused wide attention from all over the world. The us cyber space security strategy has experienced three stages of development, namely "comprehensive defense, protection of facilities" - "combination of attack and defense, cyber counter-terrorism" - "focus on attack, and network deterrence". The cyberspace security strategy suggests that the development of a country to be able to well against cyber threats, it is necessary to strengthen their own web space deterrence, only is mindful of its own strength, to occupy the initiative in the international network space game.