美国基础设施系统频遭黑客袭击

https://pan.baidu.com/s/1minCJd2

内容提要

据美国国土安全部统计：美国仅2015年基础设施系统遭黑客袭击的报道高达300起，黑客袭击愈演愈烈，在全美响起警报。而最近一起黑客袭击发生于达拉斯，黑客袭击了全城医院119系统，引起了全城民众恐慌。黑客事件频发让美国民众陷入了未知恐慌。

核心单词

sirenn.(救火车、救护车、警车等上的) 警报器(A siren is a warning device which makes a long, loud noise. Most fire engines, ambulances, and police cars have sirens.) E.g. It sounds like an air raid siren.这听起来像是空袭警报。culpritn.犯罪者; 犯错者(When you are talking about a crime or something wrong that has been done, you can refer to the person who did it as the culprit.) E.g. All the men were being deported even though the real culprits in the fight have not been identified.尽管那次斗殴事件的真凶未被确认，但那些男人都在被驱逐出境。pervasiveadj.(尤指不好的事物) 无处不在的(Something, especially something bad, that is pervasive is present or felt throughout a place or thing.) E.g. the pervasive influence of the army in national life.军队在国民生活中无处不在的影响。