Data Sovereignty: Why Keeping Data in National Territory Matters

What Is Data Sovereignty

Data sovereignty is the legal principle that data is subject to the laws and jurisdiction of the country where it is physically stored. It does not matter where the company that generates the data is headquartered, nor where the cloud provider is registered: what determines the applicable legal framework is the physical location of the servers that hold those data.

This principle has profound implications. If a Spanish company stores its customers' data on servers located in the United States, that data becomes subject to US legislation, including surveillance laws such as FISA Section 702 and the CLOUD Act. If it stores the data in a datacenter in Spain, they are protected by the GDPR, the LOPDGDD (Spain's national data protection law) and, for public-sector use cases, by the Esquema Nacional de Seguridad (ENS).

Data sovereignty is not merely a question of regulatory compliance. It is a question of control: who has the actual ability to access your data, under what conditions and with what judicial guarantees. In a world where data is the most valuable asset for many organisations, ceding that control to a foreign jurisdiction is a risk few companies can afford.

CLOUD Act vs GDPR: The Fundamental Conflict

The CLOUD Act (Clarifying Lawful Overseas Use of Data Act), enacted in the United States in 2018, grants US authorities the power to compel any company subject to US jurisdiction to hand over data stored on its servers, regardless of where those servers are physically located. This means that if you use AWS, Azure, Google Cloud or another US-based provider, the US government can request access to your data even if it is stored in a datacenter in Frankfurt, Dublin or Madrid.

On the other side, the European Union's GDPR (General Data Protection Regulation) prohibits the transfer of personal data to countries that do not offer a level of protection equivalent to the European standard, unless adequate safeguards are in place (such as standard contractual clauses or adequacy decisions). The GDPR establishes that European citizens' data must be processed with the highest privacy guarantees, and that no foreign authority may access them without a valid judicial procedure in European territory.

This conflict is not theoretical. European companies hosting data with US providers face a real risk: that their data may be accessed by US authorities without either the company or the data subjects even being informed. Encryption measures help, but they do not eliminate the risk if the provider controls the encryption keys.

Schrems I and II: The End of Privacy Shield

The rulings by the Court of Justice of the European Union (CJEU) known as Schrems I (2015) and Schrems II (2020) have been decisive in shaping the current data sovereignty landscape in Europe. Both rulings originated from lawsuits brought by Austrian activist Max Schrems against Facebook (now Meta) over the transfer of European personal data to servers in the United States.

Schrems I invalidated the Safe Harbor agreement, which since 2000 had allowed US companies to self-certify as compliant with European privacy standards. The CJEU determined that the NSA's mass surveillance programmes, revealed by Edward Snowden, meant that the US did not offer an adequate level of protection.

Schrems II was even more far-reaching: it invalidated the Privacy Shield, the successor agreement to Safe Harbor, for the same fundamental reasons. Moreover, the CJEU established that standard contractual clauses (SCCs), used massively as the legal basis for international transfers, are not sufficient on their own if the destination country has surveillance laws that contradict fundamental European rights. In practice, this means that transferring data to the US requires supplementary measures that, according to many legal experts, are virtually impossible to implement effectively when the provider is subject to the CLOUD Act.

Although the EU-US Data Privacy Framework was approved in 2023 as a new transfer mechanism, many experts anticipate it will be challenged (a potential Schrems III), since the US surveillance laws that prompted the previous rulings have not substantially changed.

Risks by Data Location

The following table summarises the risks and level of legal protection depending on where data is physically hosted:

Why Spain: Triple Legal Protection

Spain offers a unique combination of factors that make it one of the best locations in Europe for hosting sensitive data. It is not simply about being within the EU: Spain adds additional layers of protection that few European jurisdictions can match.

• flag GDPR (European regulation): as an EU member state, all data stored in Spain is protected by the GDPR, the most demanding data protection standard in the world. This includes the right to access, rectification, erasure, portability and objection to automated processing.
• gavel LOPDGDD (Organic Law 3/2018): Spain's national data protection law complements and develops the GDPR with provisions specific to the Spanish context. It includes additional regulations on minors' data, processing by legal obligation and the role of the Spanish Data Protection Agency (AEPD) as an independent supervisory authority.
• shield ENS (National Security Framework): mandatory for the public sector and its technology providers, the ENS establishes security requirements at three levels (basic, medium, high) that go beyond the GDPR. For entities working with the public administration, ENS compliance is an essential requirement.
• verified Political and legal stability: Spain is a consolidated democracy with an independent judiciary, no history of mass surveillance programmes and a data protection authority (AEPD) internationally recognised for its rigour.
• dns Growing datacenter ecosystem: Madrid has established itself as one of the main datacenter hubs in southern Europe, with Tier III+ facilities, excellent international connectivity and access to renewable energy.

Most Affected Sectors

Although data sovereignty affects every organisation that processes personal data, certain sectors face especially critical requirements due to the nature of the information they handle:

• account_balance Public sector: the ENS requires that information systems used by the public administration and its suppliers meet specific security requirements. ENS high-level certification requires that data does not leave controlled jurisdictions. Many public tenders now explicitly require that data remains within EU or Spanish territory.
• local_hospital Healthcare: health data is a special category under the GDPR (Article 9) and requires reinforced protection measures. Medical records, genetic data and clinical trial results must be stored with the highest guarantees of confidentiality and sovereignty.
• payments Financial sector: European banking regulation (EBA, ECB) establishes strict requirements for cloud service outsourcing. Financial institutions must ensure that their technology providers are not subject to foreign legislation that could compromise data confidentiality.
• military_tech Defence and critical infrastructure: classified data and critical infrastructure systems (energy, telecommunications, transport) are subject to national regulations that demand maximum control over data location and access.
• balance Legal and advisory: law firms and advisory firms handle confidential client information whose exposure to foreign jurisdictions could compromise professional secrecy and the trust relationship with their clients.

Practical Implications: How to Choose a Provider

Guaranteeing data sovereignty is not limited to choosing a datacenter in Europe. It requires a comprehensive evaluation of the provider and the entire data processing chain. These are the key aspects to verify:

• check_circle Company jurisdiction: it is not enough for the servers to be in Europe. The company that owns the service must not be subject to extraterritorial legislation such as the CLOUD Act. A European provider with European headquarters and capital offers the maximum legal protection.
• check_circle Physical data location: demand explicit contractual guarantees that data (including backups and replicas) will remain in the agreed jurisdiction. Verify that the contract includes binding data residency clauses.
• check_circle Sub-processor chain: the GDPR requires transparency about all sub-processors. Verify that no sub-processor is subject to non-adequate jurisdictions and that data protection agreements exist throughout the entire chain.
• check_circle Security certifications: look for providers with verifiable certifications such as ISO 27001, ENS, SOC 2 or sector-specific certifications that demonstrate a genuine commitment to information security.
• check_circle Encryption key control: ideally, your organisation should maintain exclusive control of encryption keys. If the provider manages the keys, ensure that auditable mechanisms exist to prevent unauthorised access.

Sovereign Cloud Initiatives in Europe

Concern over digital sovereignty has driven several European initiatives to build alternatives to US hyperscalers. The most ambitious is GAIA-X, a Franco-German project that aims to create a federated and transparent data infrastructure ecosystem that upholds European values of privacy, portability and interoperability.

GAIA-X does not aim to build a European hyperscaler that competes head-on with AWS or Azure. Instead, it seeks to establish a framework of rules and standards that enables European providers to offer cloud services with verifiable data sovereignty guarantees. Services that meet GAIA-X criteria are labelled according to their sovereignty level, from basic services with data in Europe to fully sovereign services where no component in the chain is subject to extraterritorial legislation.

In parallel, several European countries have launched national sovereign cloud initiatives. France has its Cloud de confiance strategy, Germany promotes the Sovereign Cloud Stack and Spain has included digital sovereignty as a pillar of its digital transformation agenda. All these initiatives share a common goal: enabling European organisations to benefit from the advantages of cloud computing without sacrificing control over their data.

Beyond Compliance: Business Benefits

Data sovereignty is not just a regulatory obligation: it is a real competitive advantage. Organisations that can demonstrate their data is protected under European legislation and stored on national territory gain tangible benefits:

• handshake Customer trust: in a context of growing privacy awareness, being able to communicate that data is stored in Spain under European legislation builds trust and differentiation compared to competitors using US providers.
• workspace_premium Access to public tenders: an increasing number of public tenders explicitly require that data remains within EU or national territory. Meeting data sovereignty requirements opens doors to public contracts that would otherwise be inaccessible.
• security Reduced legal risk: hosting data on national territory under a clear legal framework reduces exposure to GDPR fines (up to 4% of global turnover), data subject lawsuits and jurisdictional conflicts.
• speed Performance and latency: as an added benefit, hosting data in a nearby datacenter reduces latency for Spanish and European users, improving user experience and application performance.

EasyDataHost: Data in Spain, Spanish Company

EasyDataHost is a Spanish company with its own infrastructure in a Tier III+ data centre in Madrid. All our customers' data is stored exclusively on Spanish territory, protected by the GDPR, the LOPDGDD and the most demanding security certifications.

As a company with Spanish ownership and management, we are not subject to the CLOUD Act or any extraterritorial legislation that could compromise the confidentiality of our customers' data. This is a fundamental difference compared to US cloud providers, even when they offer European regions: the jurisdiction of the parent company remains American.

• check_circle Datacenter in Madrid: Tier III+ infrastructure with electrical redundancy, N+1 cooling and 24/7 physical security.
• check_circle 100% Spanish company: not subject to the CLOUD Act, FISA or any foreign surveillance legislation.
• check_circle GDPR + LOPDGDD + ENS: verifiable compliance with the three layers of Spanish and European legal protection.
• check_circle Complete services: colocation, cloud IaaS and managed services with guaranteed data residency in Spain.

Conclusion

Data sovereignty has moved from being an abstract topic to becoming an operational, legal and strategic requirement. The unresolved conflict between the CLOUD Act and the GDPR, the Schrems rulings and growing sector-specific regulation mean that choosing where to host your data is one of the most important decisions in any organisation's technology strategy.

• arrow_right Data sovereignty means that data is governed by the laws of the country where it is physically stored.
• arrow_right The CLOUD Act allows the US to access data held by US companies regardless of server location.
• arrow_right The Schrems I and II rulings invalidated EU-US transfer agreements due to insufficient guarantees.
• arrow_right Spain offers triple legal protection: GDPR + LOPDGDD + ENS, with no exposure to extraterritorial legislation.
• arrow_right EasyDataHost is a Spanish company with a datacenter in Madrid: guaranteed data sovereignty without CLOUD Act exposure.

If you need to host your data with the highest guarantees of sovereignty and regulatory compliance, contact our team to design the solution that best fits your sector and regulatory requirements.