This paper explores the application of Soft Systems Methodology (SSM) to develop an information systems security model specifically for the Ethiopian banking industry, addressing the human and organizational factors that influence security effectiveness. By employing mixed research methods such as surveys and interviews, it identifies key obstacles and proposes a conceptual model with actionable recommendations emphasizing the need for robust management support, awareness, structured security offices, and effective communication mechanisms. Overall, the findings highlight the critical importance of non-technical factors in enhancing information security culture and practices within the Ethiopian banking sector.