Information security risk management: a holistic framework.

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dc.contributor.author Bornman, Werner George
dc.date.accessioned 2008-04-22T06:17:11Z
dc.date.available 2008-04-22T06:17:11Z
dc.date.issued 2008-04-22T06:17:11Z
dc.date.submitted October 2004
dc.identifier.uri http://hdl.handle.net/10210/265
dc.description.abstract Information security risk management is a business principle that is becoming more important for organisations due to external factors such as governmental regulations. Since due diligence regarding information security risk management (ISRM) is necessitated by law, organisations have to ensure that risk information is adequately communicated to the appropriate parties. Organisations can have numerous managerial levels, each of which has specific functions related to ISRM. The approaches of each level differ and this makes a cohesive ISRM approach throughout the organisation a daunting task. This task is compounded by strategic and tactical level management having specific requirements imposed on them regarding risk management. Tactical level management has to meet these requirements by instituting processes that can deliver on what is required. Processes in turn should be executed by operational level management. However, the available approaches of each managerial level make it impossible to communicate and consolidate information from the lower organisational levels to top level management due to the differing terminology, concepts and scope of each approach. This dissertation addresses the ISRM communication challenge through a systematic and structured solution. ISRM and related concepts are defined to provide a solid foundation for ISRM communication. The need for and institutions that impose risk management requirements are evaluated. These requirements are used to guide the solution for ISRM communication. At strategic level, governmental requirements from various countries are evaluated. These requirements are used as the goals of the communication processes. Different approaches at tactical and operational level are evaluated to determine if they can meet the strategic level requirements. It was found that the requirements are not met by most of the evaluated approaches. The Bornman Framework for ISRM Methodology Evaluation (BFME) is presented. It allows organisations to evaluate ISRM methodologies at operational level against the requirements of strategic management. This framework caters for the ability of ISRM methodologies to be adapted to organisational requirements. Developed scales allow for a qualitative comparison between different methodologies. The BFME forms the basis of the Bornman Framework for ISRM Information Communication (BFIC). This communication framework communicates the status of each ISRM component. This framework can be applied to any ISRM methodology after it has been evaluated by the BFME. The Bornman Risk Console (BRC) provides a practical implementation of the BFIC. The prototype utilises an existing ISRM methodology’s approach and provides decision-enabling risk information to top level management. By implementing the BRC and following the processes of the BFME and BFIC the differences in the approaches at each managerial level in different organisational structures are negated. These frameworks and prototype provide a holistic communication framework that can be implemented in any organisation. en
dc.description.sponsorship Prof. L. Labuschagne en
dc.language.iso en en
dc.subject risk management en
dc.subject information technology security measures en
dc.subject computer security management en
dc.title Information security risk management: a holistic framework. en
dc.type Thesis en

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