Secure HR Data Exchange between SAP SuccessFactors and Payroll Using AI-Optimized Encryption, Masking, and Data Minimization Controls

Secure exchange of human resource data between cloud based human capital management platforms and downstream payroll systems has become a critical enterprise concern as organizations increasingly rely on distributed integration architectures. This study examines the confidentiality, integrity, and exposure risks inherent in data flows between SAP SuccessFactors and payroll platforms, with particular attention to personally identifiable and financial information subject to stringent regulatory obligations. The paper argues that traditional perimeter based security and static encryption alone are insufficient to address overexposure, misuse, and operational leakage of sensitive HR attributes during routine payroll processing. To address this gap, the study proposes a unified control framework that combines strong cryptographic protection, policy driven masking, and strict data minimization, augmented by AI optimized decision logic appropriate to the technological landscape of 2019. The framework leverages statistical risk scoring, rule augmented learning, and anomaly detection techniques to dynamically select encryption strength, masking profiles, and attribute level payload composition based on data sensitivity, purpose limitation, and operational context. A reference architecture is presented to demonstrate how these controls can be embedded across extraction, transformation, transmission, and ingestion layers without disrupting payroll accuracy or timeliness. Evaluation considerations focus on measurable reductions in data exposure, improved audit evidence generation, and enhanced governance transparency rather than speculative automation claims. The findings suggest that AI optimized security orchestration can materially improve trust and compliance in HR data exchanges while remaining compatible with established enterprise integration patterns. This work contributes a practical and extensible foundation for secure HR system interoperability and offers a defensible baseline for future research on adaptive data protection in enterprise information systems.