 Initiative Number: 1.5.2 Initiative Title: Modernize Federal Civilian Executive Branch (FCEB) technology Initiative Description The Office of Management and Budget will lead development of a multi-year lifecycle plan to accelerate FCEB technology modernization, prioritizing Federal efforts on eliminating legacy systems which are costly to maintain and difficult to defend. NCS Reference OMB will lead development of a multi-year lifecycle plan to accelerate FCEB technology modernization, prioritizing Federal efforts on eliminating legacy systems which are costly to maintain and difficult to defend. Responsible Agency: OMB Contributing Entities: CISA, GSA, ONCD Completion Date: 4Q FY24 Initiative Number: 1.5.3 Initiative Title: Secure National Security Systems (NSS) at Federal Civilian Executive Branch (FCEB) agencies Initiative Description The National Security Agency, in fulfilling the responsibilities of the National Manager for National Security Systems (NSS), will develop and execute a plan to address the security of NSS at FCEB agencies. NCS Reference The National Manager for NSS, will coordinate with OMB to develop a plan for NSS at FCEB agencies that ensures implementation of the enhanced cybersecurity requirements of National Security Memorandum (NSM)-8. Responsible Agency: NSA Contributing Entities: OMB, ONCD Completion Date: 4Q FY24 20 NATIONAL CYBERSECURITY STRATEGY IMPLEMENTATION PLAN