SOC 2 P6.6: Privacy - Cross-Border Data Transfers
What This Control Requires
The entity provides data subjects with information about cross-border data transfers and obtains necessary authorizations for such transfers. Personal information is transferred across jurisdictions only in accordance with applicable laws and the entity's privacy commitments.
In Plain Language
The moment personal data crosses a national border - even if it is just landing on a cloud server in another country - different legal rules kick in. GDPR in particular restricts transfers outside the EEA to countries without adequate data protection, and the consequences of getting this wrong are significant (Schrems II demonstrated just how quickly the ground can shift). You need to know where your personal data actually goes geographically, including cloud providers, subsidiaries, vendors, and backup sites. For each cross-border flow, you need a valid legal mechanism in place and you need to tell data subjects about it in your privacy notice. Auditors check whether you have mapped your international data flows, whether each transfer has an appropriate legal basis, whether your privacy notice discloses these transfers, and whether you are monitoring for legal changes that could invalidate your current transfer mechanisms.
How to Implement
Map every cross-border personal data transfer. Think broadly: cloud providers hosted in other countries, international offices or subsidiaries, vendors and partners in other jurisdictions, remote employees accessing data from abroad, and backup or disaster recovery sites in other regions. If personal data touches another country, it needs to be on the map. Determine the legal requirements for each transfer. Under GDPR, transfers outside the EEA require a valid transfer mechanism. Other jurisdictions have their own rules. Assess each transfer and document the legal basis. Put the right transfer mechanisms in place. For GDPR-regulated transfers, your options include adequacy decisions (for countries the European Commission has approved), Standard Contractual Clauses (SCCs) for transfers to non-adequate countries, Binding Corporate Rules for intra-group transfers, and derogations for specific situations like explicit consent or contractual necessity. Execute and file the appropriate documentation for each. Run transfer impact assessments for any transfer relying on SCCs. Evaluate whether the destination country's legal framework actually protects the data adequately. If you identify risks, layer on supplementary measures like encryption, pseudonymisation, or additional contractual restrictions. Update your privacy notice to disclose cross-border transfers. Tell data subjects which countries their data may go to, why, and what safeguards protect it. Keep this clear and specific rather than burying it in legal boilerplate. Stay on top of the legal landscape. New adequacy decisions, court rulings that invalidate transfer mechanisms, changes in destination country surveillance laws - any of these can affect your compliance overnight. Assign someone to monitor this and update your transfer mechanisms proactively.
Evidence Your Auditor Will Request
- Cross-border data transfer mapping documenting all international data flows
- Legal basis documentation for each cross-border transfer (SCCs, adequacy decisions, etc.)
- Transfer impact assessments for transfers to non-adequate jurisdictions
- Privacy notice disclosures about cross-border transfers and safeguards
- Monitoring process for legal landscape changes affecting cross-border data transfers
Common Mistakes
- Cross-border transfers are not mapped, leaving the organization unaware of international data flows
- No legal transfer mechanisms are in place for transfers to non-adequate countries
- Transfer impact assessments are not conducted for transfers relying on SCCs
- Privacy notice does not disclose cross-border transfers or the safeguards used
- Cloud provider hosting locations are not evaluated for cross-border transfer implications
Related Controls Across Frameworks
Frequently Asked Questions
Does using US-based cloud providers create a cross-border transfer issue?
What are Standard Contractual Clauses?
Do cross-border transfer rules apply to backups stored in another country?
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