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Immutable Backups

Immutable Backup: Your Financial and Operational Defense Against Ransomware

02.11.2025

10

Minutes
Thomas Demoor
CTO Impossible Cloud
How enterprise-ready immutable storage cuts cloud costs by 60-80% while guaranteeing data integrity and eliminating vendor lock-in.

Cost unpredictability remains the number one pain point for enterprises using major cloud providers, with hidden egress fees and API charges eroding budgets. Simultaneously, ransomware attacks increasingly target backup infrastructure, making data recovery nearly impossible for many. An effective immutable backup strategy directly counters these threats. It combines a predictable economic model with the technical safeguards needed for true business continuity. This approach delivers lower total cost of ownership and a built-in exit strategy, positioning IT leaders for greater control and financial predictability.

Key Takeaways

  • Immutable backup is a non-negotiable defense against ransomware, as it makes recovery data impossible for attackers to modify or delete.
  • Eliminating egress fees and API call costs is the key to predictable cloud budgeting, saving enterprises 60-80% on storage expenses.
  • An 'Always-Hot' storage architecture provides up to 20% faster backup performance and immediate data access without complex tiering or restore fees.

Confronting the Twin Threats of Unpredictable Costs and Ransomware

Most enterprises struggle with surprise egress fees from major cloud providers, which can exceed storage costs by 3-5x in data-intensive workloads. This vendor lock-in is a primary concern for IT leaders, making it prohibitively expensive to switch providers. At the same time, ransomware attacks are becoming a mission-critical threat, with 88% of incidents in 2022 attempting to impact an organization's backups. An immutable backup provides a fixed, unchangeable copy of data that cannot be altered or deleted, even by administrators, offering a powerful last line of defense. This dual approach of financial predictability and robust security is now essential for modern IT.

How Immutable Backup Creates a Guaranteed Recovery Path

An immutable backup ensures that a pristine version of your data is always recoverable and safe from modification. This is achieved using features like S3 Object Lock, which sets a Write-Once-Read-Many (WORM) policy on data for a specified retention period. Unlike simple permissions, this lock is enforced at the storage level, making it impossible for cybercriminals to encrypt or delete your recovery points. With backup infrastructure being the primary target in 96% of ransomware attacks, this capability is non-negotiable for business continuity. A sound ransomware protection strategy built on immutability guarantees a clean recovery path when all other security measures fail.

Achieve Seamless Integration with S3-Compatible Storage

S3 compatibility has become the de-facto standard for cloud object storage, ensuring your existing tools and applications work without modification. An enterprise-ready S3-compatible alternative allows you to simply change the endpoint while keeping your scripts, backup jobs, and workflows intact. This drop-in replacement capability protects past investments and reduces migration risk to nearly zero. True compatibility supports advanced features like versioning, lifecycle management, and Object Lock. This ensures your secure cloud storage solution integrates perfectly with leading backup tools, including out-of-the-box support for partners like NovaBackup.

Eliminate Hidden Fees and Predict Your Cloud Storage Budget

The primary driver of unpredictable cloud costs is egress fees, which are charged any time data leaves a provider's network. A cost-efficient storage model eliminates these charges entirely, along with API call fees and minimum storage durations. This transparent approach can reduce typical cloud storage expenses by 60-80%. Organizations can finally achieve predictable pricing, making budget planning accurate and reliable. A clear backup and recovery plan should not include surprise costs that erode your margins and complicate ROI calculations.

Key benefits of a zero-egress fee model include:

  • Predictable Margins for MSPs: Quote BaaS and DRaaS services with confidence, knowing your costs are fixed.
  • No Penalty for Access: Retrieve your data as needed for restores or analytics without financial penalty.
  • Simplified Budgeting: Eliminate the need to track complex data transfer metrics for billing purposes.
  • Freedom of Movement: Migrate data to another provider or on-premises without facing prohibitive exit taxes.

Leverage an 'Always-Hot' Architecture for Superior Performance

Many cloud providers use complex tiering models that can introduce delays and fees when you need to restore data. An "Always-Hot" object storage model ensures all data is immediately accessible, reducing operational complexity and improving performance by up to 20%. This architecture avoids fragile lifecycle policies that can lead to API timeouts and failed restores. Every object is treated as active, ensuring consistent low latency for both reads and writes. This model is critical for effective disaster recovery, where speed and reliability are paramount. Your backups are always ready for a full-scale, immediate restore without waiting or paying extra.

Implement a Resilient and Compliant Data Protection Framework

A modern backup strategy requires robust security and verifiable compliance. An enterprise-grade solution should provide multi-layer encryption and identity-based IAM with MFA and role-based access control. Certifications like SOC 2 and ISO 27001 are key indicators of a provider's commitment to security, assuring that data is protected against unauthorized access. These standards are essential for regulated industries like financial services and healthcare. The 3-2-1 backup rule remains a foundational best practice, and incorporating an immutable, off-site copy is now a critical component.

A checklist for an enterprise-ready immutable backup solution includes:

  1. Full S3 API compatibility with Object Lock support.
  2. A transparent pricing model with zero egress or API fees.
  3. An "Always-Hot" architecture for consistent performance.
  4. Enterprise-grade compliance certifications like SOC 2 and ISO 27001.
  5. Granular IAM controls with MFA and RBAC support.
  6. A built-in exit strategy with no vendor lock-in.

Empower MSPs with Predictable Margins and Simplified Management

For Managed Service Providers, predictable costs are a competitive advantage. A storage solution with no egress or API fees allows MSPs to build BaaS and DRaaS offerings with stable, defensible margins. A partner-ready platform provides essential tools for efficiency and scale, including a multi-tenant console, automation via API/CLI, and clear reporting. This enables MSPs to onboard new clients quickly and manage them effectively. By partnering with providers like Veeam through integrations, MSPs can deliver compliant, cost-efficient data protection services to regulated industries without the risk of margin erosion from surprise bills.

Build Your Exit Strategy from Day One

Vendor lock-in is a strategic risk that limits an organization's flexibility and negotiating power. An S3-compatible alternative with no egress fees provides a built-in exit strategy. Data portability is guaranteed by design through open standards and proven bulk data movement capabilities. This gives you the freedom to move your data whenever you need to, without financial penalties. True data control means you are never trapped by proprietary APIs or punitive fees. This independence ensures your storage strategy aligns with your long-term business goals, not the constraints of your vendor.

FAQ

What is the primary benefit of an 'Always-Hot' storage model?

The primary benefit is immediate and consistent access to all data without the delays or extra fees associated with retrieving data from colder storage tiers. This simplifies operations and significantly speeds up recovery times, making it ideal for backup and disaster recovery.


Can I use my existing backup tools with Impossible Cloud?

Yes. Impossible Cloud offers full S3 API compatibility, ensuring that your existing applications, scripts, and tools-including leading backup software-will work without any code rewrites. You can simply change the endpoint to integrate.


How does Impossible Cloud ensure data security and compliance?

We provide multi-layer encryption (in transit and at rest), Immutable Storage with Object Lock, and granular IAM controls with MFA/RBAC. Our platform is certified for SOC 2 and ISO 27001, meeting enterprise-grade compliance requirements for regulated workloads.


What makes the pricing model predictable?

Our pricing is predictable because we have eliminated the variable costs that cause surprise bills. We charge only for the storage you use, with no egress fees, no API call costs, and no minimum storage duration requirements.


How does Impossible Cloud support MSPs and channel partners?

We offer a partner-ready platform with a multi-tenant management console, automation via API/CLI, and detailed reporting. Our predictable cost model allows partners to build competitive BaaS and DRaaS offerings with stable, healthy margins.


What does 'built-in exit strategy' mean?

A built-in exit strategy means you can move your data to another provider at any time without facing technical or financial barriers. This is possible due to our use of the standard S3 API and our policy of charging zero egress fees for data retrieval.


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