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As a major developed economy, the United States is highly dependent on the Internet and therefore greatly exposed to cyberwarfare attacks, yet at the same time has very significant capabilities in both defense and power projection thanks to its advanced technology and large military budget. The United States Department of Defense recognises the use of computers and the Internet to conduct warfare in cyberspace as a threat to national security,〔(DOD – Cyberspace ) 〕 but also as a platform for attack.〔(【引用サイトリンク】title=American Forces Press Service: Lynn Explains the U.S Cybersecurity Strategy )〕 The United States Cyber Command centralizes command of cyberspace operations, organizes existing cyber resources and synchronizes defense of U.S. military networks. It is an armed forces sub-unified command subordinate to United States Strategic Command. ==The Five Pillars== The five pillars is the framework for the United States military strategy for cyberwarfare.〔(【引用サイトリンク】title=Official: NATO Should Build A 'Cyber Shield' )〕 The first pillar is to recognize that the new domain for warfare is cyberspace similar to the other elements in the battlespace. The second pillar is proactive defenses as opposed to passive defense. Two examples of passive defense are computer hygiene and firewalls. The balance of the attacks require active defense using sensors to provide a rapid response to detect and stop a cyber attack on a computer network. This would provide military tactics to backtrace, hunt down and attack an enemy intruder. The third pillar is critical infrastructure protection (CIP) to ensure the protection of critical infrastructure. The fourth pillar is the use of collective defense, which would provide the ability of early detection and to incorporate them into the cyberwarfare defence structure. The fifth pillar is maintain and enhance the advantage of technological change. This would include improved computer literacy and increasing artificial intelligence capabilities. In April 2015, the U.S. Department of Defense (DoD) published its latest Cyber Strategy building upon the Five Pillars published in July 2011. The DoD Cyber strategy focuses on building capabilities to protect, secure, and defend its own DoD networks, systems and information; defend the nation against cyber attacks; and support contingency plans. This includes being prepared to operate and continue to carry out missions in environments impacted by cyber attacks. DoD set five strategic goals:〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Cyberwarfare in the United States」の詳細全文を読む スポンサード リンク
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