Understanding and Specifying Information Security Needs to Support the Delivery of High Quality Security Services

In this paper we present an approach for specifying and prioritizing information security requirements in organizations. It is important to prioritize security requirements since hundred per cent security is not achievable and the limited resources available should be directed to satisfy the most important ones. We propose to explicitly link security requirements with the organization's business vision, i.e. to provide business rationale for security requirements. The rationale is then used as a basis for comparing the importance of different security requirements. Furthermore we discuss how to integrate the aforementioned solution concepts into a service level management process for security services, which is an important step in IT Governance. We validate our approach by way of a focus group session.