<![CDATA[The development of electronic commerce in Indonesia has brought convenience alongside new legal challenges, particularly the widespread circulation of products that infringe registered trademarks. This study aims to analyze the legal regulation of registered trademark protection in electronic commerce and to examine the legal responsibility attached to the Shopee platform for trademark infringement committed by sellers operating on it. This research applies normative legal research using statutory, conceptual, and case approaches, referring to primary, secondary, and tertiary legal materials. The results show that registered trademark protection is regulated under Law Number 20 of 2016 on Trademarks and Geographical Indications, while the legal framework for electronic commerce is regulated under Law Number 1 of 2024 on the Second Amendment to the ITE Law, Government Regulation Number 71 of 2019, and Government Regulation Number 80 of 2019. However, the existing regulations still contain normative ambiguity regarding the limits of platform responsibility. Shopee’s legal responsibility is not absolute but conditional, based on the principle of fault-based liability consistent with the concept of intermediary liability: Shopee may be exempted from responsibility if it promptly removes infringing content upon receiving a report, yet may still be held liable if proven negligent in verifying sellers or supervising products, which may be qualified as an unlawful act under Article 1365 of the Civil Code.]]>
