Information security (INFOSEC) is the discipline governing the classification, downgrading, declassification, transmission, transportation, and safeguarding of information requiring protection in the interests of national security. It primarily pertains to classified national security information, now known as classified information, but also addresses controlled unclassified information (CUI), to include for official use only (FOUO) and sensitive but unclassified (SBU).
The J-2 Information Security Program enforces policies, procedures, and requirements to protect classified and controlled unclassified information that, if disclosed, could cause damage to national security.
