Data classification can be used to give data processors a quick view of how critical data is and how data should be processed and protected.
The data categories used and the corresponding security levels are defined. The category of information is defined by analyzing the confidentiality, integrity and availability of the information in question, as well as any other requirements. Each level is given a clear and descriptive name.
Data classifications can be, for example, the following:
CONFIDENTIAL paper information may require e.g. the following protections:
CONFIDENTIAL electronic information may require e.g. the following protections:
The dataset owners (or the owners of the related information asset, such as a data store or data system) are responsible for the classifications of the datasets and the correspondence of the classification to the definitions of the classes.
The owner updates the data classification over the life cycle of the asset according to variations in its value, sensitivity, and criticality.
The ways in which information is classified and classifications marked are defined, markings are easily identifiable and they cover both physical and electronic information and assets. The marking must indicate to what extent the document is to be kept secret and on what basis the secrecy is based. Personnel are instructed on how to make markings.