Abstract This paper is dealing with one of the major challenges confronting the development of forensic accounting primarily legislation to combat fraudulent practices in the Kingdom of Saudi Arabia. The focus of our research is corporate and practice in the finance and banking sectors, since business operations are becoming more complex, especially with the recent developments in information and communication technology and as a consequence of the global pandemics of Covid-19 and the looming economic crisis. This has changed the nature of corporate fraud and fraudulent practices. This study has a primary goal to investigate the theoretical aspects of the integration of forensic accounting and corporate law and related regulation as tools for combating corporate and cyber fraud. In that sense, forensic accounting with a more than strong backing in the legislative aspects is strongly geared towards the minimization of the cost of employed capacities for forensic accounting activities to mitigate and eventually eliminate cyber fraud. The study also explores the effect of integrating forensic accounting and management control systems on banks’ reputations and the huge loss of revenue resulting from cyber fraud. The study develops a conceptual model to show the relationship between forensic accounting, the management control system, and cyber fraud in the banking sector. A legal context analysis methodological research approach was employed to express the relationship amongst the variables considered in this study to reduce corporate and public sector fraud, minimize cost and improve the reputation of corporate and public government sectors. Preliminary research in the formulation of clear conclusions gives an idea of the feasibility of combining the components of forensic accounting, corporate and related laws and regulations, management control systems, and corporate reputation to combat business fraud. This was validated in some general conclusions which resulted in an acceptable, logical, and feasible model of forensic accounting solidly founded in corporate law and structure. Some of the findings are that the speed and ease of convergence process symbiotic integration of forensic accounting and corporate law is the best solution that is feasible and suitable for achieving the set objectives. Our initial conclusion and recommendation are that the government of the Kingdom of Saudi Arabia should introduce legislation that would ensure strict corporate disclosure standards, requirements, and norms as this would defend companies’ critical assets as well as its anti-fraud programs.