Asia Pacific Economic Cooperation APEC is the correct option.

Asia Pacific Economic Cooperation APEC has developed the APEC Privacy Framework and the Cross Border Privacy Rules system which member economies use to establish data protection practices for transborder flows. APEC is a multilateral economic forum for the Asia Pacific region and those instruments are explicitly intended to protect personal data while enabling legitimate cross border data transfers.

International Organization for Standardization ISO is incorrect because ISO is a standards organization that publishes privacy management standards such as ISO/IEC 27701 but it is not the regional economic forum that established a cross border privacy regime like APEC.

Cloud Security Alliance CSA is incorrect because the CSA is an industry group focused on cloud security best practices and research and it is not a governmental international forum that sets cross border privacy protections.

Organisation for Economic Co operation and Development OECD is incorrect for this question because although the OECD has issued influential privacy guidelines the question asks for the other major forum that established the Asia Pacific cross border privacy protections and the expected answer is APEC.

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