The recent disruption of services for apps hosted in European data centers, despite compliance with regional data storage regulations, has highlighted a critical gap in data security: the difference between where data is stored and who controls its operation. This incident, stemming from a technical failure in Virginia, USA, underscores the growing need for operational sovereignty in the processing of personal data, a concept that goes beyond simply locating data within a specific geographic region.
For many organizations, the appeal of cloud services lies in their scalability and cost-effectiveness. Still, the architecture of these services often centralizes key management functions – access permissions, server scaling, and encryption key management – in the provider’s home region. This means that even with data physically residing in the European Union, in locations like Madrid, Paris, Frankfurt, or Dublin, the ability to access and utilize that data can be compromised by an outage elsewhere. The incident serves as a stark reminder that compliance checkboxes regarding data location are insufficient to guarantee true data control, and resilience.
The GDPR and the Obligation of Resilience
The General Data Protection Regulation (GDPR) explicitly addresses the need for robust security measures, including the “ability to ensure the continued confidentiality, integrity, availability and resilience of processing systems and services” (Article 32). A failure to maintain this availability, such as a service interruption caused by reliance on infrastructure in a third country, isn’t merely a technical glitch; it constitutes a breach with potential consequences for citizens’ rights and freedoms. Imagine, for example, the inability to access critical medical records or banking services due to such an outage.
From Data Sovereignty to Operational Control
The focus is shifting from simply achieving data sovereignty – the idea of keeping data within a defined jurisdiction – to achieving true operational sovereignty. This means possessing the autonomous ability to operate and manage processing systems without critical dependencies on infrastructure located outside the European Economic Area (EEA). These external dependencies are vulnerable to both technical failures and legal decisions made in other countries. Simply selecting “Region: Europe” in a cloud system configuration panel is no longer sufficient.
Recommendations for Data Controllers
Organizations utilizing cloud services must proactively address these vulnerabilities. Several key steps can be taken to enhance resilience and ensure compliance:
- Review Impact Assessments (DPIAs): Organizations should thoroughly analyze their Data Protection Impact Assessments to determine whether risks associated with cross-border dependencies have been adequately addressed, particularly concerning service availability.
- Demand Transparency in Architecture: Cloud providers should be pressed for clear information regarding which services are genuinely “regional” and which remain “global.” A critical question to ask is whether a database can authenticate users even if communication links with the United States are severed.
- Design for Disconnection: Architectures should be designed to operate in “island” or “degraded mode,” maintaining critical functions locally even if the central control plane fails.
- Diversification: Adopting multi-cloud or hybrid strategies can help avoid systemic single points of failure, distributing risk across multiple providers and environments.
While cloud services offer significant advantages, the ultimate responsibility for data processing remains with the organization determining the purposes and means of that processing. Ensuring resilience against global failures is now a fundamental aspect of compliance.
The Challenge of Non-Substitutable Suppliers
The current digital landscape is often dominated by a handful of large infrastructure and software providers, creating high barriers to exit and limited substitution options. The aim isn’t to label organizations using these services as inherently non-compliant. Instead, the focus lies on the GDPR’s principle of accountability. When an organization relies on a critical dependency on a non-substitutable supplier, it must demonstrate due diligence in managing that risk. This includes identifying and analyzing the risk in impact assessments, requiring transparency from the provider regarding its resilience, and implementing realistic mitigation measures as part of a comprehensive contingency plan.
These mitigation measures, such as architectures allowing operation in ‘degraded mode’ or process continuity strategies, should prioritize maintaining essential operations even in the event of a provider failure, particularly for processes with a high impact on fundamental rights. The Innovation and Technology Division of the AEPD has published related materials exploring these issues further.
The incident serves as a wake-up call for organizations to move beyond superficial compliance and embrace a more holistic approach to data security, prioritizing operational sovereignty and building resilient systems that can withstand global disruptions. The conversation around data security is evolving, and organizations must adapt to ensure the continued protection of personal data in an increasingly interconnected world.
Looking ahead, continued scrutiny of cloud provider architectures and a push for greater transparency will be crucial. The European Commission is likely to continue refining guidance on data governance and operational resilience, and organizations should stay informed of these developments to ensure ongoing compliance.
What steps is your organization taking to ensure operational sovereignty? Share your thoughts in the comments below.
