Sensitive But Unclassified (SBU) is a designation of information in the
United States federal government that, though unclassified, often requires
strict controls over its distribution. SBU is a broad category of
information that includes material covered by such designations as For
Official Use Only (FOUO), Law Enforcement Sensitive (LES), Sensitive
Homeland Security Information, Security Sensitive Information (SSI),
Critical Infrastructure Information (CII), etc. Some categories of SBU
informa