Embarking on the journey to secure Controlled Unclassified Information (CUI) begins here. Identifying where your CUI data originates is crucial. Are you aware of all the places CUI might reside? From emails to documents, determining these sources illuminates the path ahead. Delve into this task with curiosity and the right investigative tools, transforming ambiguity into clarity. Recognize obstacles early, such as hidden data silos, and have a detection strategy ready.