Preserving authorized restrictions on information access and disclosure, including means for protecting personal privacy and proprietary information. SOURCE: SP 800-53; FIPS 200; FIPS 199; 44 U.S.C., Sec. 3542 The property that sensitive information is not disclosed to unauthorized individuals, entities or processes. SOURCE: FIPS 140-2 Ensuring that information is accessible only to those authorized to have access (ISO 17799)