Understanding the Challenge of Cybersecurity in Critical Infrastructure Sectors

Abstract The cybersecurity of critical infrastructures is an essential topic within national and international security as 16 infrastructure sectors touch various aspects American society. Because the failure to provide adequate controls renders country open attack that could have a debilitating effect on security, public health, safety, economic this matter so vital there Presidential Policy Directive (PPD) 21 Critical Infrastructure Security Resilience advances policy strengthen maintain secure, functioning resilient infrastructure. An organization identified Cybersecurity Agency (CISA) at Department Homeland (DHS) has mission be risk advisor for United States (US). Other organizations, such National (NSA), approved specific Knowledge Unit (KU) address associated with doctoral-level granting programs. To challenge, it necessary identify threats better defend against them while mitigating risks acceptable level. Only then can nation build more secure future defending present-day bad actors cyberwarfare, cyber espionage, attacks are modern-day need addressed in planning, designing, implementation, maintenance. Therefore, researchers developed case study reviewing different defined PPD.