This study aims to analyze the implementation of cyber notary in Indonesia in relation to personal data protection, particularly after the enactment of the Personal Data Protection Act (UU PDP). Using a normative legal research method, the study examines primary legal materials such as UU ITE, UU PDP, and UUJN, as well as secondary sources from legal literature and comparative studies between civil law and common law jurisdictions. The findings show that although cyber notary offers efficiency and accessibility through electronic deeds and digital authentication, it also raises serious challenges regarding data privacy, security risks, and regulatory disharmony. Notaries potentially act as both data controllers and processors, requiring clear legal obligations and technological safeguards to prevent misuse or leakage of personal data. The study concludes that the future of cyber notary in Indonesia depends on harmonizing relevant laws, adopting responsive law principles, and reinforcing notaries’ role as guardians of privacy. Furthermore, the integration of regulatory sandbox mechanisms, national technical standards, and joint supervision by state institutions and professional associations is essential to ensure that digitalization in the notarial field aligns with both legal certainty and citizens’ right to privacy.
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