CNIL Slaps €3.5 Million Fine Over Loyalty Data Used for Social Media Ad Targeting
France’s data protection authority, the CNIL, has imposed a €3.5 million fine on a company for unlawfully using the personal data of its loyalty program members to fuel targeted advertising on a social network. The sanction, adopted on 30 December 2025 and announced publicly on 22 January 2026, stems from long-running practices that the regulator says breached core principles of EU data protection law and affected more than 10.5 million people.
