Data Anonymization and Privacy Preservation in Healthcare Systems

The rapid development of digital technologies has enabled the creation of modern information systems; yet, it has also brought unprecedented challenges towards data security and user privacy. Sensitive data, especially in the healthcare, financial, and communication industries, are increasingly subject to violations and abuse. This study aims to strengthen data protection mechanisms through the integration of innovative data encryption and anonymization methods. It critically reviews various best-in-class approaches using both qualitative assessments and quantitative measures. With the objective to identify key trends and driving factors, a bibliometric analysis was performed using VOSviewer, which focuses on prominent authors, dominant research topics, and collaborative networks in data privacy. In addition, empirical case studies are examined to demonstrate the applicability and effectiveness of these methods in safeguarding user data. The study not only maps present progress but also outlines present vulnerabilities, offering insights for designing strong privacy-preserving systems. Finally, this study contributes to building a safer and more trustworthy digital world by strengthening the underlying constructs of data confidentiality, integrity, and user trust.