Definition: Data confidentiality is a property of data, usually resulting from legislative measures, which prevents it from unauthorized disclosure.
Context: In SDMX, "Confidentiality" refers to the legislative measures or other formal provision which prevent unauthorised disclosure of data that identify a moral or physical person either directly or indirectly. Also refers to the procedures in place to prevent disclosure of confidential data, including rules applying to staff, aggregation rules when disseminating data, provision of unit records, etc.
Source: Economic Commission for Europe of the United Nations (UNECE), "Terminology on Statistical Metadata", Conference of European Statisticians Statistical Standards and Studies, No. 53, Geneva, 2000