[20181219]IF10683_国土安全部网络安全任务概述.pdf

https:/crsreports.congress.gov Updated December 19, 2018DHSs Cybersecurity MissionAn OverviewMuch of the U.S. governments cybersecurity apparatus focuses on the adversarythe person or organization that seeks to or has already carried out an attack against information technology (IT) systems. The U.S. Department of Homeland Security (DHS) is unique in the governments structure because its work to ensure national cybersecurity is largely agnostic to any individual threat actor, but informed by the risks that the actor presents. This In Focus describes DHSs cybersecurity missions and how the Department interacts with others to accomplish its missions. DHSs Cybersecurity Missions DHS has a variety of cybersecurity missions, which span the spectrum of prevention, protection, mitigation, response and recovery. In operating along this spectrum, DHS seeks to assess cyber risks and use its understanding of those risks to promote security and resilience of information communication technology (ICT) systems. When a cyber incident occurs, DHS has capabilities and authorities to provide direct assistance to the victim (both federal and non-federal) to help that victim recover from the incident