Cloud Storage

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secure S3 API compatible object storage

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IT engineer working in a modern European data center, highlighting Impossible Cloud's secure S3 API compatible object storage.

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IT engineer working in a modern European data center, highlighting Impossible Cloud's secure S3 API compatible object storage.

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IT engineer working in a modern European data center, highlighting Impossible Cloud's secure S3 API compatible object storage.

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Achieve Digital Sovereignty with Secure S3 API Compatible Object Storage

01.07.2025

11

Minutes

Thomas Demoor

CTO Impossible Cloud

01.07.2025

01.07.2025

11

Minutes

Thomas Demoor

CTO Impossible Cloud

Concerns over non-EU data access and unpredictable cloud bills are slowing down IT leaders. A truly sovereign, secure S3 API compatible object storage solution offers a practical path forward. It provides the performance parity and cost transparency needed to migrate with confidence.

Key Takeawys

Achieve true digital sovereignty and GDPR compliance with storage operated exclusively in certified EU data centers, keeping data safe from foreign laws like the CLOUD Act.

Eliminate vendor lock-in and simplify migration with 100% S3 API compatibility that works seamlessly with your existing applications, scripts, and backup tools.

Gain complete cost control with a transparent pricing model that has zero egress fees, no API call charges, and no minimum storage durations, enabling predictable budgets and stable partner margins.

A majority of EU decision-makers now demand European solutions for critical data infrastructure, driven by regulations like GDPR and the CLOUD Act's reach. Yet, many feel locked into existing providers due to complex pricing and migration risks. The solution is a platform that is sovereign by design, offering country-level geofencing in certified European data centers to guarantee EU data residency. By combining full S3 API compatibility with a transparent economic model—free of egress fees and API call costs—enterprises can finally de-risk their cloud strategy, ensure compliance, and protect their most valuable data assets without rewriting a single application.

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Establish Digital Sovereignty with an EU-Native Architecture

In 2025, digital sovereignty is a primary concern for over 84% of European decision-makers selecting cloud vendors. Our secure S3 API compatible object storage operates exclusively in certified European data centers, ensuring your data remains under EU jurisdiction and safe from foreign laws like the CLOUD Act. This architecture provides country-level geofencing for data compliance, giving you precise control over data residency to meet strict regulatory demands.

For industries like financial services, this guarantees that sensitive data aligns with EU-compliant regional requirements. This approach is not just a feature but a foundational principle, providing the legal certainty that 97% of the EU cloud market, currently dominated by non-European providers, cannot inherently offer. This focus on EU-centric governance is critical for building a resilient and compliant data strategy.

Ensure Seamless Migration and Integration with 100% S3 Compatibility

Migrating to a new storage platform should not require a complete overhaul of your existing applications and workflows. Our platform ensures a seamless transition with full S3 API compatibility, allowing your established tools, scripts, and applications to work without any code rewrites. This protects your past technology investments, minimizing migration risk for 100% of your S3-based infrastructure.

Our compatibility extends beyond basic operations to include advanced capabilities, which are essential for modern data management. These features include:

  • Object versioning for tracking changes.

  • Automated lifecycle management policies.

  • IAM roles with MFA and RBAC support.

  • Immutable Storage with Object Lock.

  • Event notifications for workflow automation.

This comprehensive support ensures that even complex data pipelines continue to run without interruption. Out-of-the-box integrations with leading backup tools, including our collaboration with NovaBackup, further simplify the move to a more secure and sovereign environment. This deep integration prepares your infrastructure for future demands.

Build Proactive Ransomware Resilience with Immutable Storage

Ransomware attacks continue to grow in sophistication, making proactive defense a necessity for every organization. Our secure S3 API compatible object storage includes Immutable Storage via Object Lock, a critical defense that makes your backup data unchangeable for a set retention period. Once written, data cannot be altered, encrypted, or deleted by anyone, effectively neutralizing ransomware threats against your backups.

This Write-Once-Read-Many (WORM) model is a core component of a modern 3-2-1-1-0 backup strategy, where at least one copy of your data is immutable. This feature provides a guaranteed clean recovery point, allowing you to restore operations quickly without paying a ransom. Combined with multi-layer encryption for data in transit and at rest, our platform offers a robust defense posture recognized by cybersecurity agencies like CISA as essential for mitigating ransomware. This security-first approach hardens your defenses against evolving threats.

Achieve Cost Predictability by Eliminating Egress and API Fees

Hidden fees are a major pain point for IT leaders, with unpredictable egress and API call charges driving up total cloud ownership costs by over 20% for many firms. Our economic model is predictable by design, with zero egress fees, no API call costs, and no minimum storage durations. This transparent approach allows you to forecast your storage expenses with 100% accuracy, eliminating billing surprises entirely.

For Managed Service Providers (MSPs), this predictability is a game-changer. It enables the creation of Backup-as-a-Service (BaaS) and archiving solutions with stable, defensible margins. Partners can build profitable services without worrying that data restores or high-frequency API calls will erode their profits. This model directly addresses the vendor lock-in concerns highlighted by the upcoming EU Data Act, which seeks to ban punitive data transfer fees by 2027. This financial clarity empowers better business planning and fosters long-term partnerships.

Meet Regulatory Demands with Compliance-Ready Governance

Staying ahead of evolving regulations is a competitive advantage. Our platform is built to meet the stringent requirements of GDPR, the upcoming EU Data Act, and the NIS-2 Directive. The EU Data Act, applicable from September 2025, mandates data portability and interoperability, which our open standards and S3 API natively support, ensuring you have a real exit path and avoid vendor lock-in.

The NIS-2 Directive requires continuous security processes, and our platform delivers with robust features. Key governance capabilities include:

  1. Identity-based IAM with granular, role-driven policies.

  2. Support for external IdPs via SAML/OIDC for seamless integration.

  3. Time-bounded access controls and presigned URLs.

  4. A first-class console UX for managing permissions, logging, and lifecycle rules without deep API expertise.

These tools provide the auditable controls needed to demonstrate compliance for any regulated workload. This readiness simplifies audits and strengthens your overall security posture.

Simplify Operations with an Always-Hot Object Storage Model

Complex storage tiering often creates more problems than it solves, leading to restore delays, API timeouts, and unexpected retrieval fees that can increase operational costs by 15% or more. Our secure object storage utilizes an “Always-Hot” model, ensuring all your data is immediately accessible without any tier-restore delays. This architecture eliminates the operational complexity of managing brittle lifecycle policies that can fail during urgent restores.

With 100% of data always available, third-party tools and backup applications remain stable and predictable. This model is built for consistency and scale, delivering strong read/write performance and predictable latencies for mixed workloads, from millions of small files to large archives. By avoiding fragile tiering, you strengthen your recovery capabilities and ensure your data is ready the moment you need it. This operational simplicity allows your IT team to focus on strategic initiatives instead of storage management.

Empower Channel Partners with a Platform Built for Growth

Our commitment to the channel is reflected in a partner-ready platform designed for MSPs, resellers, and system integrators. The multi-tenant partner console provides the tools needed for efficient management, including robust RBAC, MFA, and detailed reporting. With full automation available via our API and CLI, partners can onboard new customers in under 60 seconds and scale their services effortlessly.

The predictable pricing model, with zero egress or API fees, ensures our partners can build services with clear, sustainable margins. We are expanding our reach across Europe to support this growth, with recent distribution agreements signed with api in Germany and our first UK distributor, Northamber plc. These partnerships provide local access and support for hundreds of resellers and MSPs. This momentum demonstrates our dedication to building a strong, partner-centric ecosystem.

Our commitment to the channel is reflected in a partner-ready platform designed for MSPs, resellers, and system integrators. The multi-tenant partner console provides the tools needed for efficient management, including robust RBAC, MFA, and detailed reporting. With full automation available via our API and CLI, partners can onboard new customers in under 60 seconds and scale their services effortlessly.

The predictable pricing model, with zero egress or API fees, ensures our partners can build services with clear, sustainable margins. We are expanding our reach across Europe to support this growth, with recent distribution agreements signed with api in Germany and our first UK distributor, Northamber plc. These partnerships provide local access and support for hundreds of resellers and MSPs. This momentum demonstrates our dedication to building a strong, partner-centric ecosystem.

Take Practical Steps Toward a Sovereign Cloud Strategy

Migrating to a new storage platform requires a clear plan. A successful transition to our secure S3 API compatible object storage can be achieved in just a few steps. First, update your application endpoints to point to our service. Second, replicate your existing bucket policies and IAM roles using our intuitive console or API. Third, conduct a test restore of a critical dataset to validate the process from end to end.

For backup and disaster recovery, this is an opportunity to enhance your strategy. We recommend a modern 4-2-2 backup approach: four copies of your data on two different media types, with two copies offsite—one of which is immutable. This approach provides an exceptionally resilient posture against both ransomware and regional disasters. Start your transition with a free trial or talk to one of our experts to design a migration plan that meets your specific security and compliance needs. A well-planned migration ensures a smooth and secure transition to a truly sovereign cloud.

FAQ

Can I use my existing backup software with Impossible Cloud?

Yes. Our platform offers full S3 API compatibility, ensuring out-of-the-box integration with leading backup and archival software that supports the S3 protocol. You can connect your existing tools without needing to rewrite scripts or change workflows.



How does Impossible Cloud ensure my data stays within a specific country?

We provide country-level geofencing capabilities. You can select the specific European country where your data will be stored, and our platform guarantees it will not be moved or replicated outside that predefined region, ensuring you meet strict data residency and sovereignty requirements.



What is the 'Always-Hot' storage model?

The 'Always-Hot' model means all data stored on our platform is immediately accessible at high performance speeds. Unlike tiered storage models, there are no delays or extra fees for retrieving data from 'cold' or 'archive' tiers, which simplifies operations and ensures fast restores.



How does your pricing model work?

Our pricing is simple and transparent. You pay for the storage you use. There are no additional charges for data egress (downloads), API requests (GET, PUT, LIST), or minimum storage durations, which leads to predictable and lower overall costs.



Is my data encrypted?

Yes, we implement multi-layer encryption to protect your data at all times. Data is encrypted in transit using TLS and at rest using AES-256, ensuring it remains secure and confidential within our EU-based data centers.



How do I get started with Impossible Cloud?

You can start with a free trial to test our platform's capabilities and performance. Alternatively, you can contact our team for a personalized demo to discuss your specific use case and migration plan.



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Impossible Cloud is your European alternative for S3-compatible object storage. Data resides in GDPR-compliant, certified EU data centers; Object Lock and versioning protect against ransomware. Transparent pricing with no egress or API fees. Perfect for backup, archive, and disaster recovery.

Impossible Cloud is your European alternative for S3-compatible object storage. Data resides in GDPR-compliant, certified EU data centers; Object Lock and versioning protect against ransomware. Transparent pricing with no egress or API fees. Perfect for backup, archive, and disaster recovery.

Impossible Cloud is your European alternative for S3-compatible object storage. Data resides in GDPR-compliant, certified EU data centers; Object Lock and versioning protect against ransomware. Transparent pricing with no egress or API fees. Perfect for backup, archive, and disaster recovery.