The initial public draft (ipd) of NIST Special Publication (SP) 800-100r1 (Revision 1), Information Security Handbook: A Guide for Executive Leadership , is now available for comment. Since the original version of SP 800-100 was released in 2006, the cybersecurity landscape, regulatory environment, and NIST’s body of guidelines have changed substantially. This revision restructures the handbook to align with the general organization of the NIST Cybersecurity Framework (CSF) 2.0 and provides high-level summaries of key cybersecurity topics, including governance, risk management, information exchange, security awareness and training, contingency planning, configuration management, and incident