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Achieve Compliant WORM Storage in the UK With a Sovereign Cloud

21.07.2025

9

Minutes

Christian Kaul

Founder & COO Impossible Cloud

Oct 11, 2025

21.07.2025

21.07.2025

9

Minutes

Christian Kaul

Founder & COO Impossible Cloud

UK organisations face growing pressure to meet stringent data retention mandates while controlling unpredictable cloud costs. A sovereign WORM storage solution offers a clear path to compliance and financial stability. Discover an enterprise-ready platform that delivers immutability without compromise.

Key Takeaways

Sovereign WORM storage in the UK ensures data remains under EU law, avoiding CLOUD Act exposure through geofencing in European data centres.

Immutable backups using S3 Object Lock provide a primary defence against ransomware by making data unchangeable for its entire retention period.

A predictable cost model with no egress or API fees allows UK MSPs to build profitable BaaS and archiving services with stable margins.

For UK businesses and Managed Service Providers, ensuring data integrity and compliance is a primary operational challenge. Regulations require Write-Once-Read-Many (WORM) capabilities to protect critical records from modification or deletion, a core defence against ransomware. Yet, many cloud solutions introduce unpredictable costs and data sovereignty risks under foreign laws like the CLOUD Act. This article outlines a modern approach to WORM storage in the UK: a sovereign, S3-compatible object storage platform. It operates exclusively in European data centres, offering immutable backups and predictable costs to secure your digital assets and simplify compliance.

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Adopt a Sovereign-by-Design Storage Model

True data control begins with a platform that is sovereign by design. Our solution operates exclusively in certified European data centres, ensuring your data remains under EU legal protection. This architecture provides UK companies with country-level geofencing, a critical tool for meeting specific data residency requirements. We eliminate the risk of vendor lock-in with a transparent economic model featuring zero egress fees and no API call costs. Full S3-API compatibility protects your existing investments, allowing seamless integration with backup tools and applications without any code rewrites. This foundation provides a practical path to achieving genuine data sovereignty.

Strengthen Ransomware Defence and Simplify Archiving

Immutable storage is a core defence against ransomware, and our platform delivers it through S3 Object Lock. This feature allows you to set WORM policies, making your backup and archive data unchangeable and undeletable for its entire retention period. More than 80% of European organisations are now considering sovereign cloud solutions to enhance security. Our platform supports key use cases for UK businesses looking for robust WORM storage. We provide a secure environment for long-term data archiving and tape-to-cloud initiatives.

  • Immutable Backups: Use Object Lock to create tamper-proof copies of your data, rendering ransomware attacks ineffective.

  • Disaster Recovery: Our 'Always-Hot' architecture ensures all data is immediately accessible for rapid recovery, with multi-AZ replication eliminating single points of failure.

  • Simplified Compliance: Automate retention policies to meet regulatory mandates for financial services and other regulated industries.

  • Seamless Integration: Leverage out-of-the-box compatibility with leading backup vendors like NovaBackup for streamlined protection.

This approach transforms your backup repository into a resilient fortress against evolving cyber threats.

Leverage Immutable Storage and Geofencing for Compliance

Achieving compliance in the UK requires technical controls that align with legal frameworks like GDPR. Our WORM storage solution provides two powerful mechanisms to support this. First, geofenced storage ensures your data never leaves predefined European regions, avoiding exposure to the US CLOUD Act. Second, Immutable Storage with Object Lock creates an unalterable record, which is a key requirement for many data retention regulations. All data is protected with multi-layer encryption, both in transit and at rest. These features provide the technical proof needed to satisfy auditors and regulators, simplifying your journey to full organisational compliance.

Meet EU Data Act and NIS-2 Requirements by Design

Forthcoming EU regulations will reshape data governance, and our platform is built to address them proactively. The EU Data Act, effective from September 2025, mandates data portability to prevent vendor lock-in. Our architecture, built on open standards, ensures you can always move your data. The NIS-2 Directive requires continuous security processes and supply-chain assurance for critical infrastructure. Our operational model incorporates these principles at its core.

  1. Data Portability by Design: We provide proven methods for bulk data movement, including metadata and versions, aligning with the EU Data Act's core tenets.

  2. Continuous Security: Our operations include robust patch management, vulnerability scanning, and incident reporting timelines as required by NIS-2.

  3. Supply-Chain Assurance: By operating in ISO 27001-certified EU data centres, we provide a secure and compliant link in your supply chain.

  4. Transparent Governance: We offer clear SLAs and EU-controlled key management, giving you the documentation needed for GDPR and ICO compliance.

This regulatory readiness provides a distinct competitive advantage for UK businesses operating in Europe.

Deliver Predictable Margins for UK Channel Partners

For UK MSPs, resellers, and system integrators, profitability depends on predictable costs. Our partner program is predictable by design, built to protect your margins. The complete absence of egress fees or API call charges means you can offer Backup-as-a-Service (BaaS) and archiving solutions with confidence. We provide a multi-tenant partner console with robust IAM controls, including MFA and RBAC, for secure client management. Furthermore, our recent partnership with UK distributor Northamber plc ensures local access and support for our growing channel network. This partner-ready approach simplifies onboarding and accelerates your time-to-market with sovereign immutable backup solutions.

Ensure Constant Data Access with an 'Always-Hot' Architecture

Complex storage tiering often creates hidden costs and operational friction. Policies can become misaligned with access patterns, leading to unexpected fees and restore delays during a crisis. Our architecture avoids these issues with an 'Always-Hot' model, where 100% of your data is immediately accessible. This design simplifies operations and ensures predictable performance for third-party tools. It is ideal for mixed workloads, from millions of small files to large archival objects. This approach strengthens your disaster recovery posture by eliminating restore delays entirely.

FAQ

How does your WORM storage solution protect against the US CLOUD Act?

Our platform is a European company that operates exclusively in certified European data centres. By using country-level geofencing, we ensure your data is legally and physically stored within the EU, outside the direct jurisdiction of the US CLOUD Act, providing true data sovereignty.



Is your platform compatible with my existing backup software?

Yes, we offer full S3-API compatibility. This ensures seamless, out-of-the-box integration with leading backup and archiving tools that use the S3 protocol, such as Veeam and NovaBackup. No changes to your existing scripts or applications are needed.



What makes your pricing model predictable for a UK business?

Our pricing is transparent and predictable because we have eliminated common variable costs. We charge for the storage you use with no egress fees, no API call costs, and no minimum storage durations, which prevents unexpected bills.



How do you support UK Managed Service Providers (MSPs)?

We provide a partner-ready platform with a multi-tenant console, IAM with MFA/RBAC for secure client management, and full automation via API/CLI. Our predictable pricing model allows MSPs to build services with stable margins. We also have UK distribution through Northamber plc.



What does 'Immutable Storage' mean?

Immutable Storage, enabled by S3 Object Lock, means that once data is written, it cannot be altered or deleted for a customer-defined retention period. This creates a WORM (Write-Once-Read-Many) state, which is a critical defence against ransomware and essential for regulatory compliance.



How does your architecture ensure high availability?

Our architecture is designed to eliminate single points of failure. We use multi-AZ (Availability Zone) replication to ensure data integrity and availability. Additionally, our 'Always-Hot' model means all data is instantly accessible, supporting business continuity and disaster recovery plans.



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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.