What Is Sensitive But Unclassified Data?

What Is Sensitive But Unclassified Data? Sensitive but Unclassified (SBU) information is information that is not classified for national security reasons, but that warrants/requires administrative control and protection from public or other unauthorized disclosure for other reasons. What is the difference between SBU and CUI? SBU, which stands for Sensitive But Unclassified information, is in