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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Identifying Factors Contributing Towards Information Security Maturity in an Organization

Edwards, Madhuri M. 01 January 2018 (has links)
Information security capability maturity (ISCM) is a journey towards accurate alignment of business and security objectives, security systems, processes, and tasks integrated with business-enabled IT systems, security enabled organizational culture and decision making, and measurements and continuous improvements of controls and governance comprising security policies, processes, operating procedures, tasks, monitoring, and reporting. Information security capability maturity may be achieved in five levels: performing but ad-hoc, managed, defined, quantitatively governed, and optimized. These five levels need to be achieved in the capability areas of information integrity, information systems assurance, business enablement, security processes, security program management, competency of security team, security consciousness in employees, and security leadership. These areas of capabilities lead to achievement of technology trustworthiness of security controls, integrated security, and security guardianship throughout the enterprise, which are primary capability domains for achieving maturity of information security capability in an organization. There are many factors influencing the areas of capabilities and the capability domains for achieving information security capability maturity. However, there is little existing study done on identifying the factors that contribute to achievement of the highest level of information security capability maturity (optimized) in an organization. This research was designed to contribute to this area of research gap by identifying the factors contributing to the areas of capabilities for achieving the highest level of information security capability maturity. The factors were grouped under the eight capability areas and the three capability domains in the form of an initial structural construct. This research was designed to collect data on all the factors using an online structured questionnaire and analyzing the reliability and validity of the initial structural construct following the methods of principal components analysis (PCA), Cronbach Alpha reliability analysis, confirmatory factor analysis (CFA), and structural equation modeling. A number of multivariate statistical tests were conducted on the data collected regarding the factors to achieve an optimal model reflecting statistical significance, reliability, and validity. The research was conducted in four phases: expert panel and pilot study (first phase), principal component analysis (PCA) and reliability analysis (RA) of the factor scales (second phase), confirmatory factor analysis (CFA) using LISREL (third phase), and structural equation modeling (SEM) using LISREL (fourth phase). The final model subsequent to completing the four phases reflected acceptance or rejection of the eleven hypotheses defined in the initial structural construct of this study. The final optimized model was obtained with the most significant factors loading on the capability areas of information integrity, information security assurance, business enablement, security process maturity, security program management, competency of security team, security conscious employees, and security leadership, including the most significant factors loading the three capability domains of security technology trustworthiness, security integration, and security guardianship. All the eleven hypotheses were accepted as part of the optimal structural construct of the final model. The model provides a complex integrated framework of information security maturity requiring multi-functional advancements and maturity in processes, people, and technology, and organized security program management and communications fully integrated with the business programs and communications. Information security maturity is concluded as a complex function of multiple maturity programs in an organization leading to organized governance structures, multiple maturity programs, leadership, security consciousness, and risk-aware culture of employees.
2

IoT Security With INFINITE: The 3-Dimensional Internet Of Things Maturity Model

Haar, Christoph, Buchmann, Erik 25 February 2022 (has links)
Many companies are more and more interested in using IoT devices, either to optimize their processes or due to the lack of alternatives. The situation is similar to some years ago, when cameras were banned on company premises for security considerations, but all modern cell phones had cameras. Observations have shown, that the security properties of IoT devices with a similar functionality might differ significantly. This makes it challenging for a company to identify IoT devices that match its security policy. In order to make it possible for companies to assess the level of security of IoT devices before buying them, we introduce INFINITE, our 3-dimensional INternet oF thINgs maturITy modEl. INFINITE can be used at procurement-time, to find out to which degree an IoT device meets the requirements of the company’s security policy. This simplifies the procurement process, prevents the introduction of IoT devices that cannot be integrated into an enterprise-wide security strategy, and ultimately saves costs. To this end, INFINITE allows us to considers both the software and the hardware life cycle of an IoT device.:1. Introduction 2. Related Work 3. Defining INFINITE 4. Evaluation 5. Conclusion
3

Towards a conceptual framework for information security digital divide

Chisanga, Emmanuel 10 1900 (has links)
In the 21st century, information security has become the heartbeat of any organisation. One of the best-known methods of tightening and continuously improving security on an information system is to uniquely and efficiently combine the human aspect, policies, and technology. This acts as leverage for designing an access control management approach which not only avails parts of the system that end-users are permitted to but also regulates which data is relevant according to their scope of work. This research explores information security fundamentals at organisational and theoretical levels, to identify critical success factors which are vital in assessing the organisation’s security maturity through a model referred to as “information security digital divide maturity framework”. The foregoing is based on a developed conceptual framework for information security digital divide. The framework strives to divide end-users, business partners, and other stakeholders into “specific information haves and have-nots”. It intends to assist organisations to continually evaluate and improve on their security governance, standards, and policies which permit access on the basis of each end-user or stakeholder’s business function, role, and responsibility while at the same time preserving the traditional standpoint of confidentiality, integrity, and availability. After a thorough review of a range of frameworks that have influenced the information security landscape, COBITTM was relied upon as a baseline for the development of the framework of the study because of its rich insight and maturity on IT management and governance. To ascertain that the proposed framework meets the required expectation, a survey targeting end-users within three participating organisations was carried out. The outcome revealed the current maturity level of each participating organisation, highlighting strengths and limitations of current information security practices. As such, for new organisations relying on the proposed framework for the first time, the outcome of such an assessment will represent a benchmark to be relied on for further improvement before embarking on the next maturity assessment cycle. In addition, a second survey was conducted with subject matter experts in information security. Data generated and collected through a questionnaire was then analysed and interpreted qualitatively and quantitatively in order to identify aspects, not only to gauge the acceptance of the proposed conceptual framework but also to identify areas for improvements. The study found that there was a general consensus amongst experts on the importance of a framework for benchmarking information security digital divide in organisations. It also provided a range of valuable input relied upon to improve the framework to its final version. / School of Computing / M. Sc. (Computing)

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