Magazine
European Cloud
GDPR Compliance

Achieve Digital Sovereignty with GDPR-Compliant Cloud Storage

21.08.2025

10

Minutes
Christian Kaul
Founder & COO Impossible Cloud
How European businesses can leverage EU-based object storage to ensure compliance, eliminate lock-in, and build a resilient data strategy for 2025 and beyond.

Key Takeaways

  • True GDPR compliance requires a sovereign-by-design approach, using EU-only data centers to eliminate risks from foreign laws like the CLOUD Act.
  • Predictable cloud costs are achievable with a model that has zero egress fees and zero API call costs, aligning with the EU Data Act's goals.
  • Enterprise-ready features like full S3 compatibility and Immutable Object Lock provide a practical path to ransomware resilience and simplified migration.

A strong majority of EU decision-makers now prioritize European solutions for their critical data infrastructure. The challenge lies in finding a platform that delivers on GDPR compliance without sacrificing performance or creating unpredictable costs. True digital sovereignty is achieved through a combination of EU-only data residency, transparent economics, and robust security. This article outlines a practical blueprint for selecting a GDPR-compliant cloud storage solution that meets today's regulatory demands and is prepared for tomorrow's challenges, like the EU Data Act.

The Strategic Shift to European Data Sovereignty

Over 75% of EU enterprises are projected to use advanced cloud services by 2030, making data location a critical issue. Storing data outside the Union exposes businesses to foreign laws, creating significant compliance risks. A European provider eliminates this exposure to legislation like the CLOUD Act entirely.

The demand for EU data residency is a primary selection criterion for over 50% of IT leaders. This shift is driven by the need for legal certainty and control over sensitive corporate and customer information. Choosing a sovereign cloud platform is the first step in building digital trust with customers and regulators.

A viable EU alternative must offer more than just location; it requires performance parity and cost transparency to justify a switch. Many businesses report that a 41% barrier to achieving cloud value is data compliance and security complexity. A truly sovereign cloud solution simplifies this by design, aligning its architecture with European regulations from the ground up.

Core Pillars of a GDPR-Compliant Storage Architecture

Achieving compliance begins with physical data location, a foundational principle of the GDPR. Impossible Cloud operates exclusively in certified European data centers, ensuring your data never leaves the EU's legal jurisdiction. This provides a 100% guarantee against non-EU data access requests.

Country-level geofencing offers another layer of control, allowing you to restrict data storage to specific EU nations. This is essential for financial services and other regulated industries with strict data residency mandates. It directly supports the GDPR's 'storage limitation' and 'accountability' principles.

Security is not optional; it must be integrated at every level for true compliance. Multi-layer encryption, protecting data both in-transit and at-rest, is a baseline requirement. This technical measure ensures data integrity and confidentiality, two of the seven key principles outlined in Article 5 of the GDPR.

Enterprise-Ready Functionality Beyond the Basics

Full S3-API compatibility ensures that 100% of your existing applications, scripts, and backup tools work without modification. This protects your past investments and reduces migration risk to near zero. Your teams can continue using the tools they already know, like the AWS CLI and various SDKs.

Our "Always-Hot" object storage model makes all data immediately accessible, eliminating restore delays common with tiered systems. This architecture avoids the operational complexity and hidden fees of moving data between hot and cold tiers. It guarantees consistent, predictable latencies for every single read or write operation.

An enterprise-ready platform must support advanced S3 capabilities to manage data effectively at scale. Here are four key features that keep your data pipelines running smoothly:

  • Versioning to protect against accidental deletions or corruption.
  • Lifecycle management for automated data retention and deletion policies.
  • Object tagging for granular cost allocation and access control.
  • Event notifications to trigger downstream automated workflows.

This advanced feature set ensures your European cloud storage is not just a repository but an active part of your IT strategy.

Proactive Defense with Immutable Storage and Advanced IAM

Immutable Storage with S3 Object Lock is your first line of defense against ransomware. It makes data unchangeable for a defined period, ensuring that at least one copy of your critical backups is 100% secure. This feature is a core component of a modern 3-2-1 backup strategy.

The upcoming NIS-2 Directive requires organizations to implement robust supply-chain security and risk management. Using immutable backups provides verifiable proof of your data's integrity for audits. It is a technical measure that directly addresses the directive's call for enhanced cyber resilience.

Effective governance requires precise control over who can access data and when. Our Identity and Access Management (IAM) system provides this with features like:

  1. Role-Based Access Control (RBAC) to enforce the principle of least privilege.
  2. Multi-Factor Authentication (MFA) for all users to prevent unauthorized access.
  3. Support for external Identity Providers via SAML/OIDC for seamless integration.
  4. Time-bounded access and presigned URLs for secure, temporary data sharing.

These tools help you build a security posture that meets the stringent requirements of both GDPR and NIS-2.

Future-Proofing Your Strategy for the EU Data Act

The EU Data Act, fully applicable from September 2025, is designed to eliminate vendor lock-in. It mandates that customers can switch cloud providers easily, taking all their data and metadata with them. Our platform is built on this principle of data freedom from day one.

A key provision of the Data Act is the phasing out of switching charges, including data egress fees, by January 2027. Impossible Cloud already offers a pricing model with zero egress fees and zero API call costs. This makes us not just compliant, but years ahead of the market in providing fair and transparent pricing.

Our commitment to open standards and full S3 compatibility provides a real exit path, preserving your long-term freedom. This aligns perfectly with the Data Act's goal of creating a more competitive and fair digital market in the EU. Your privacy is guaranteed without financial penalties for portability.

Driving Partner Success with a Predictable-by-Design Model

For Managed Service Providers, predictable margins are everything. Our model, with zero egress fees and no minimum storage durations, allows MSPs to build defensible margins for Backup-as-a-Service offerings. This removes the billing surprises that erode profitability by over 15% for many providers.

Our partner-ready console is built for multi-tenant management, featuring robust RBAC and MFA. MSPs can automate everything from user onboarding to reporting via a comprehensive API and CLI. This reduces administrative overhead by at least 25% compared to legacy systems.

We are expanding local access for resellers across Europe with new distribution agreements. The addition of api in Germany and Northamber plc in the UK in 2025 demonstrates our 100% commitment to the channel. Partners can now more easily deliver sovereign, cost-efficient cloud storage to their clients.

FAQ

Is my data subject to the US CLOUD Act if stored with Impossible Cloud?

No. Impossible Cloud is a European company that stores all data exclusively in certified European data centers. Your data is governed solely by EU law, primarily the GDPR, and is not subject to the jurisdiction of the US CLOUD Act.

Are there any hidden fees for accessing my data?

No. Our pricing model is transparent and predictable. We charge only for the storage you use, with no egress fees for data retrieval, no API call costs, and no minimum storage duration fees.

How does Impossible Cloud help with ransomware protection?

We provide S3 Object Lock, which allows you to make your data immutable. This means objects cannot be deleted or overwritten for a specified time, creating a secure, tamper-proof backup that is essential for recovering from a ransomware attack.

What kind of support do you offer for migration?

Our full S3 compatibility makes migration straightforward. You can use standard S3 tools and services to move your data. For larger or more complex migrations, our expert team is available to provide guidance and support to ensure a smooth transition.

How does your platform support Managed Service Providers (MSPs)?

We offer a partner-ready platform with a multi-tenant console, Role-Based Access Control (RBAC), and automation via API/CLI. Our predictable pricing model with no egress fees allows MSPs to build stable, profitable Backup-as-a-Service (BaaS) and archiving solutions for their clients.

Is your storage suitable for both backup and active data?

Yes. Our 'Always-Hot' architecture means all data is instantly accessible with high performance and low latency. This makes it ideal for a wide range of use cases, from primary backup and disaster recovery to active archiving and long-term retention, without the complexity or delays of tiered storage.