September 28, 2023
      
                  
        
  Author(s)
  Keith A.  Stouffer,   Michael  Pease,   CheeYee  Tang,   Timothy  Zimmerman,   Victoria Yan  Pillitteri,   Suzanne  Lightman,   Adam  Hahn,   Stephanie  Saravia,   Aslam  Sherule,   Michael  Thompson
 
       
            
    
    
        This document provides guidance on how to secure operational technology (OT) while addressing their unique performance, reliability, and safety requirements. OT encompasses a broad range of programmable systems and devices that interact with the physical