Guidance on Requirements for Transferring Personal Data Abroad via Overseas Cloud Services

Companies and individuals using overseas cloud services must fulfill legal requirements when transferring personal data abroad, in accordance with Article 28-8 of the Personal Information Protection Act. The legal amendments revised in 2024 have diversified transfer pathways beyond solely relying on data subject consent, including adequacy decisions, Standard Contractual Clauses (SCCs), and international certifications. Therefore, when adopting services that use overseas-based servers such as Amazon Web Services (AWS) or Microsoft Azure, a proactive review of the destination country's protection level and the security clauses in the contract is essential.

Legal Framework and Types of Personal Data Transfer Requirements Abroad

Diversification of Data Subject Consent and Legal Bases

The most basic requirement is to obtain separate, explicit consent from the data subject for overseas transfer. According to the Personal Information Protection Act, the name of the recipient, the country of transfer, the purpose and items of transfer, and the retention period must be clearly notified. However, recently, in addition to consent, transfers to countries recognized by the Personal Information Protection Commission as having an adequacy decision, meaning their personal information protection level is equivalent to that of Korea, are permitted. This serves as a safeguard while reducing administrative burdens for businesses.

Ensuring Security Through Contracts and Certifications

In situations where obtaining consent is difficult, Standard Contractual Clauses notified by the Personal Information Protection Commission must be executed to guarantee security measures. This should include commitments from the data importer to implement technical and administrative protection measures and to ensure data subject recourse. Furthermore, transfers abroad are also possible through certain procedures if the entity has obtained internationally recognized certifications, such as the Information Security Management System-Personal Information (ISMS-P). Verifying these diverse requirements is a key factor in resolving legal uncertainties in the use of cloud services.

Practical Verification Methods and Procedures in Cloud Environments

Identification of Data Processing Routes and Server Locations

Personal information processors must clearly identify the physical location where cloud service providers store data. The standard is not simply the headquarters' location, but the location of the region where the data is actually processed. For example, if a company headquartered in the United States uses a Singaporean region, it must simultaneously consider Singapore's personal information protection laws and Korea's overseas transfer regulations. It is necessary to document and confirm the data processing addendum (DPA) provided by the service provider, including whether data is re-delegated and the inter-country transmission routes.

Review of Service Level Agreements (SLAs) and Security Clauses

Cloud usage contracts must specify the obligation to notify and the allocation of responsibility in the event of a personal information breach. Korean personal information protection laws require protection measures equivalent to domestic laws even for overseas transfers, so it is crucial to check if accident response procedures and technical security measures are included in the contract. Particularly for content creation guidelines or specific projects where unclear points may arise under current laws, it is recommended to supplement contract wording by reflecting the latest guidelines from the Commission.

Corporate Response Strategies for Secure Overseas Transfers

Technical Protection Measures and Administrative Monitoring

Strengthened encryption and de-identification measures are required for data transferred abroad. Applying robust encryption algorithms not only to the transmission segments but also during storage, and adopting a system where encryption keys are managed directly within Korea can maximize security. Furthermore, a system must be established to continuously monitor whether contractual obligations are being faithfully fulfilled by obtaining security audit reports (e.g., SOC 2) regularly conducted by cloud providers.

Establishing Governance and Developing Emergency Response Plans

In line with the current administration's digital safety policy, the overseas transfer of personal information is treated as an issue directly related to national data sovereignty. Companies must assetize and manage a list of personal information transferred abroad, and periodically review changes in the recipient country's laws or political risks. To prepare for situations where the recipient country's personal information protection level rapidly declines or legal disputes arise, establishing an emergency response manual that allows for immediate repatriation of data or suspension of transfer is crucial from an investment risk management perspective.

Future Outlook and Investment Implications

Expansion of Adequacy Decisions Between Countries and Changes in the Regulatory Environment

The government is expected to expand discussions on adequacy decisions with various countries beyond the European Union (EU) in the future. This will provide a foundation for domestic companies to utilize overseas cloud infrastructure more freely. Given the possibility of changes in data regulations within the United States under the Trump administration's "America First" policy, information technology (IT) companies using global cloud services must respond flexibly by monitoring country-specific regulatory trends in real-time.

Securing Data Sovereignty and the Growth of the Security Industry

As requirements for overseas cloud usage become more stringent, demand for comprehensive cloud security solutions is expected to increase further. The market for specialized services that handle review of standard contractual clauses and security monitoring for overseas personal data transfers is anticipated to become more active. Companies must prioritize legal compliance over mere cost savings, making it a core competitive advantage. This will be a decisive factor in enhancing corporate value and gaining data subject trust in the long term.