This publication is a thesis research Submitted in partial fulfillment of the requirements for the Degree of Master of Science in Information Technology at Strathmore University. The topic is addressing the challenges related to justification of system security investment when the perception of cost benefit of the security project differs respectively from one stakeholder (top management, IT/security manager, end-users, etc.) to another. Further, Cost-Benefit Analysis (CBA) is very difficult to perform... Mehr