Restricted (medium confidentiality level).Confidential (top confidentiality level).The bigger and more complex your organization is, the more levels of confidentiality you will have – for example, for a mid-size organization you may use this kind of information classification levels with three confidential levels and one public level:
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ISO 27001 does not prescribe the levels of classification (i.e., there is no ISO 27001 information classification nor ISO 27001 data classification schemes) – this is something you should develop on your own, based on what is common in your country or in your industry. The higher the classification, the more important the information is, and then more resources should be considered for its protection.
The point of developing an asset inventory is that you know which classified information you have in your possession, and who is responsible for it (i.e., who is the owner).Ĭlassified information can be in different forms and types of media, e.g.: In a classification context, generally data and information are treated the same. Please note that this process applies to both data (the raw recorded material that has no specific meaning) and information (the meaning you give to, and insights you get from data). In most cases, companies will develop an Information Classification Policy, which should describe all these four steps for classifying information – see the text below for each of these steps. This means that: (1) the information should be entered in the Inventory of Assets (control A.8.1.1 of ISO 27001), (2) it should be classified (A.8.2.1), (3) then it should be labeled (A.8.2.2), and finally (4) it should be handled in a secure way (A.8.2.3). Good practice for classifying information says that classification should be done via the following process: The four-step process for classifying information
Entering the asset in the Inventory of Assets.
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