NIST 800-171 SECURITY AUDITING:: Special 2019 edition update includes section on Controlled Unclassified Information (CUI) marking, handling, and storage...over 30 pages of detailed instructions (Sep 2019)... Mark...This book is designed to walk the auditor through each of the 110 controls with a thorough understanding of whether a control is met or not. There is no "partial credit." While the process is subjective, the assessor must make a reasonable...