This study aims to analyze mechanisms for addressing business crimes in the public sector amid the transformations produced by the philosophy of modern public management, focusing on the shift from bureaucratic and traditional forms of crime to their emerging digital and cyber forms. The study adopts the descriptive-analytical method, supported by a comparison of six leading international experiences in combating business crimes, governance, and compliance — namely Singapore, France, Australia, New Zealand, Sweden, and South Korea. Analysis of these experiences identified a set of institutional and digital practices adaptable to different administrative environments. Based on this, the study proposes an integrative model termed the “Integrated Institutional Immunity Model (IIIM),” as a proactive framework for the prevention, detection, and response to business crimes. The study concludes with the importance of shifting from a logic of after-the-fact inspection and oversight to proactive compliance, and strengthening digital governance and digital sovereignty, in support of integrity and institutional resilience in the public sector.