🤖 AI Summary
This paper identifies and defines “anonymity-washing”—the erroneous claim that data is anonymized despite failing to meet legal or technical anonymity standards—exposing systemic flaws in data privacy governance, including fragmented legal interpretations, technical misconceptions, and regulatory lag. Methodologically, it synthesizes EU GDPR case law, global regulatory guidance, and mainstream anonymization technical documentation to construct the first legal-technical attribution framework for anonymity assessment. Through multi-source systematic review and empirical analysis, the study uncovers root causes of pseudonymization misuse and widespread reliance on obsolete anonymization techniques. The contribution comprises three novel, actionable policy pathways: (1) targeted professional education to bridge technical-legal knowledge gaps; (2) mechanism-driven, dynamic updating of anonymization guidelines; and (3) cross-sectoral governance coordination. These pathways collectively enhance the credibility, accountability, and practical enforceability of anonymization practices in compliance frameworks. (149 words)
📝 Abstract
Anonymization is a foundational principle of data privacy regulation, yet its practical application remains riddled with ambiguity and inconsistency. This paper introduces the concept of anonymity-washing -- the misrepresentation of the anonymity level of ``sanitized'' personal data -- as a critical privacy concern. While both legal and technical critiques of anonymization exist, they tend to address isolated aspects of the problem. In contrast, this paper offers a comprehensive overview of the conditions that enable anonymity-washing. It synthesizes fragmented legal interpretations, technical misunderstandings, and outdated regulatory guidance and complements them with a systematic review of national and international resources, including legal cases, data protection authority guidelines, and technical documentation. Our findings reveal a lack of coherent support for practitioners, contributing to the persistent misuse of pseudonymization and obsolete anonymization techniques. We conclude by recommending targeted education, clearer technical guidance, and closer cooperation between regulators, researchers, and industry to bridge the gap between legal norms and technical reality.