CISA, along with the FBI, NCSC, and international partners, has released new cybersecurity guidance. This guidance, titled "Creating and Maintaining a Definitive View of Your Operational Technology (OT) Architecture," builds upon previous asset inventory advice. It details how organizations can use data sources like asset inventories and software bills of materials to maintain an accurate OT system view. A definitive OT record is crucial for effective risk assessments and prioritizing security. The guidance also covers managing third-party risks and securing OT information. It recommends fostering collaboration between OT and IT teams. Additionally, it advises aligning with international standards such as IEC 62443 and ISO/IEC 27001. Organizations are urged to implement these recommendations to enhance their OT security. This effort aims to strengthen operational technology security and mitigate associated risks. The full guidance offers more comprehensive details on these strategies.