Manage IT and OT Asset Inventory

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)

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

Data store documentation must include at least:

• Connected responsibilities
• Data processing purposes (covered in a separate task)
• Data sets included in the data store (covered in a separate task)
• Data disclosures (covered in a separate task)
• When necessary, data stores connections to action processes

The organization shall maintain a list of data sets contained in the data stores it manages.

The documentation shall include at least the following information:

• Data systems and other means used to process the data sets
• Key categories of data in the data set (and whether it contains personal data)
• Data retention period (discussed in more detail in a separate task)
• Information on archiving / disposal of data (discussed in more detail in a separate task)

The organization shall list all relevant protected assets to determine ownership and to ensure that security measures cover all necessary items.

A large portion of the protected assets (including data sets, data systems, personnel / units, and partners) are treated through other tasks. In addition, the organization must list other important assets, which may be, depending on the nature of its operations, e.g. hardware (servers, network equipment, workstations, printers) or infrastructure (real estate, power generation, air conditioning). In addition the organization should make sure that relevant external devices are documented.

Printers and copiers are interpreted as information systems and must therefore meet the requirements for both technical, physical and administrative information security. The technical requirements can be met, for example, with a separate device solution.

The requirement can be met by taking the measures mentioned below:

• Copies are treated like original data.
• The copy can only be handed over to a person who has processing rights to the information and a need for the information content.
• A copy/printout may only be taken by with a device that meets the safety level requirements.

The organization has a clear process, according to which it identifies the most critical functions in terms of its operations (e.g. services offered to customers), which are subject to the highest continuity requirements.

Items in the IT environment that are necessary for these activities (such as information systems, data reserves, operating processes, partners, units, hardware) are classified as critical.

Critical functions are considered with the highest priority, e.g. in continuity planning, and stricter safety requirements can be applied to them than to other objects in the environment.