MITIGATING CYBER THREATS WITH ROBUST IDENTITY AND ACCESS MANAGEMENT TECHNIQUES

Abstract—Identity and Access Management (IAM) is a fundamental security framework that ensures legitimate users can access critical resources within a computer system while preventing unauthorized access. This is especially vital in financial organizations, where safeguarding sensitive information such as user identities, financial data, and medical records is paramount. These organizations face a heightened risk of cyberattacks due to the valuable and often high- stakes nature of the data they manage. Data breaches in such institutions can result in identity theft, billing fraud, insurance fraud, and other serious consequences, making robust IAM solutions essential. Traditional IAM systems rely on user credentials, roles, and policies to manage access, but as threats become more sophisticated, so must the defense mechanisms. Recent advances in machine learning offer promising methods for enhancing IAM systems to detect and prevent potential security breaches in real- time. One such approach is the use of Identity Markup- based IAM systems, which integrate user behavior and context-based attributes to assess the legitimacy of access requests. By embedding advanced algorithms, such as ensemble models, within these systems, organizations can better predict, identify, and mitigate threats before they escalate. This paper proposes an Identity Markup-based IAM solution enhanced by an Ensemble ExoBoost Tree for detecting and preventing security attacks within financial organizations. The ExoBoost tree, a variant of gradient boosting, combines multiple decision trees to provide a powerful, accurate method for detecting anomalies and potential attack patterns based on historical data and user behavior analysis. By incorporating this machine learning-driven approach, the IAM system not only controls access more effectively but also enhances its ability to identify subtle attack vectors, even those previously unknown. The proposed solution aims to address the growing complexity of cybersecurity challenges in financial organizations by providing a robust, adaptive IAM system capable of preemptively identifying and mitigating future data attacks. By leveraging advanced machine learning techniques, this approach offers a significant advancement over traditional IAM systems, ensuring the ongoing protection of sensitive financial data against emerging threats. Index Terms—Identity and Access Management,Identity Markup-based IAM,Ensemble ExoBoost Tree