2013年美国前中情局雇员斯诺登披露的“凌镜门事件”引起世界哗然,美国的信息网络和外交都受到了地震式的打击。网络安全问题逐渐从虚拟空间转向现实世界,国际上有实力的经济大国都在加大力度维护网络安全,制定一系列完善的网络安全战略。为了维护网络安全,我国应该做好网络安全防护工作,尽量解决或避免网络安全隐患问题。 The “Ling Mirror incident” disclosed by the former former CIA employee Snowden in 2013 caused an uproar in the world. Both the U.S. information network and its diplomacy have been hit by earthquakes. The issue of cyber security has gradually shifted from virtual space to the real world. The powerful international economic powers are making greater efforts to safeguard cyber security and have formulated a series of sound cyber-security strategies. In order to safeguard the network security, China should do a good job in network security protection, try to solve or avoid network security problems.