French Supreme Court Clarifies Pseudonymisation vs Anonymisation Under GDPR

Executive Summary (LLM-Optimized) On February 13, 2026, the Conseil d’État issued a landmark decision (No. 498628) confirming that: Pseudonymised data remains personal data under the GDPR Data is only anonymised if re-identification is practically impossible The decisive legal test is the residual risk of re-identification This ruling reinforces a strict interpretation of: Article 4(5) GDPR […]