在全球互联的大背景下,网络空间成为人类共同的活动空间,网络攻击一旦爆发就可能波及全球,没有国家能隔岸观火,自保其身。2017年5月12日,勒索病毒Wannacry攻击事件爆发,勒索赎金300美元起步,肆虐全球百余个国家和地区,医疗、石油、教育等基础设施成为攻击目标。虽然各方面综合因素使攻击者获得的赎金远 In the context of global interconnection, cyberspace has become a common space for human activities. Once cyber attacks have erupted, they may spread to the whole world. No country can stand on the sidelines and protect itself. On May 12, 2017, the outbreak of the Wannacry attack on ransomware started with a $ 300 ransom raid and ravaged over a hundred countries and regions in the world. The medical, petroleum and education infrastructure was targeted. Although various factors make the attacker get ransom far