Suojattavan omaisuuden hyväksyttävä käyttö

Organisation must maintain a listing of used data systems and their owners. Owner is responsible for completing the related documentation and possible other security actions directly related to the data system.

Data system documentation must include at least:

• System purpose and linked responsibilities
• System's data location (covered in a separate task)
• System's maintenance and development responsibilities and linked partners (covered in a separate task)
• When necessary system's access roles and authentication methods (covered in a separate task)
• When necessary systems interfaces to other systems (covered in a separate task)

The organization should have defined guidelines for the generally acceptable use of data systems and for the management of the necessary credentials.

In addition, the owners of data systems classified as 'High' or 'Critical' priority can define, document, and implement more specific guidelines for the use of that particular data system. These guidelines can describe e.g. security requirements related to the data contained in the system.

A large amount of valuable information in an organization has often accumulated over time into hard-to-find and manageable unstructured data — excels, text documents, intranet pages, or emails.

Once this information has been identified, a determined effort can be made to minimize its amount.Important data outside data systems is subject to one of the following decisions:

• move into a data system
• get rid of (when the information is old, no longer necessary or otherwise irrelevant)
• is kept in use and a responsible person is appointed to manage the risks