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Online marketplace operators face stricter GDPR duties after EU court ruling (update*)

By Sara Brandstätter ( December 2, 2025, 09:39 GMT | Insight) -- Operators of online marketplaces must proactively identify and control the processing of personal data contained in user-posted advertisements, the EU's highest court has ruled, tightening compliance expectations for platforms hosting classified ads. The court said marketplace operators qualify as controllers for personal data in ads published on their sites under the EU’s General Data Protection Regulation, even when users upload the content.Operators of online marketplaces must proactively identify and control the processing of personal data contained in user-posted advertisements, the EU Court of Justice has ruled, tightening compliance expectations for platforms hosting classified ads (see here). ...

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