Pinterest is under scrutiny as the European privacy rights group noyb has filed a complaint alleging violations of GDPR due to unauthorized tracking for advertising. The complaint claims Pinterest has not obtained user consent for profiling, risking penalties of up to 4% of its global turnover. The platform allegedly defaults to tracking users unless they opt out, a practice criticized for being non-compliant with EU regulations. The case highlights growing concerns over privacy and data protection in the digital advertising landscape, especially following prior incidents linked to user safety.