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Vol. 1 · Ed. 2026
CyberGlossary
Entry № 283

Data Residency

What is Data Residency?

Data ResidencyThe requirement that data is physically stored and, in some interpretations, processed within a specific country or region, often driven by contracts, customer demands, or sector regulation.


Data residency designates the geographic location where data is kept at rest, typically expressed through cloud-region selection, EU/EEA-only storage, in-country backups, or contractual commitments such as standard contractual clauses. It is distinct from data sovereignty, which adds the question of whose laws apply, and from cross-border transfer rules under GDPR Chapter V, China's PIPL, or India's DPDP Act. Organizations implement residency through tenant-region pinning, key management with customer-managed keys, audit-log scoping, encryption that prevents foreign jurisdiction access, and supplier due diligence. Residency is increasingly used as a procurement differentiator and to meet healthcare, financial-services, or public-sector mandates.

Examples

  1. 01

    Choosing an EU-only region for a SaaS tenant so all customer data remains in Frankfurt and Dublin.

  2. 02

    Configuring database backups to stay within India to satisfy DPDP Act obligations.

Frequently asked questions

What is Data Residency?

The requirement that data is physically stored and, in some interpretations, processed within a specific country or region, often driven by contracts, customer demands, or sector regulation. It belongs to the Privacy & Data Protection category of cybersecurity.

What does Data Residency mean?

The requirement that data is physically stored and, in some interpretations, processed within a specific country or region, often driven by contracts, customer demands, or sector regulation.

How does Data Residency work?

Data residency designates the geographic location where data is kept at rest, typically expressed through cloud-region selection, EU/EEA-only storage, in-country backups, or contractual commitments such as standard contractual clauses. It is distinct from data sovereignty, which adds the question of whose laws apply, and from cross-border transfer rules under GDPR Chapter V, China's PIPL, or India's DPDP Act. Organizations implement residency through tenant-region pinning, key management with customer-managed keys, audit-log scoping, encryption that prevents foreign jurisdiction access, and supplier due diligence. Residency is increasingly used as a procurement differentiator and to meet healthcare, financial-services, or public-sector mandates.

How do you defend against Data Residency?

Defences for Data Residency typically combine technical controls and operational practices, as detailed in the full definition above.

What are other names for Data Residency?

Common alternative names include: Geographic Storage Requirements, In-Region Storage.

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