Backup & Ransomware Resilience
Immutable, air-gapped backups with write-once-read-many (WORM) storage and network-isolated recovery environments. Scheduled restore drills prove RPO/RTO targets, and encryption-behaviour anomaly detection on backup writes protects clean copies during an active ransomware event.
Overview
Ransomware attacks now explicitly target backup systems — deleting shadow copies, encrypting backup repositories, and exfiltrating data before triggering the ransom demand. Backup and Ransomware Resilience provides immutable, air-gapped backups combined with rapid recovery capabilities designed to withstand modern ransomware attacks. Backups are stored in write-once-read-many (WORM) storage that even an administrator with root access cannot modify or delete during the retention window.
Clevertek scopes every engagement to your environment — capacity, sites, compliance and support model — so you get a tailored plan rather than a fixed SKU. Pricing is quote-only, and our solutions architects will work through your requirements before any proposal.
Our approach
We design and deploy a ransomware-resilient backup architecture — immutable storage targets, air-gapped recovery environments, and automated recovery testing. Backups follow the 3-2-1-1 rule: three copies, two different media, one off-site, one immutable and air-gapped. We handle backup software deployment, storage configuration (on-premise, cloud, or hybrid), encryption key management, retention policy definition, and scheduled recovery testing. Your organisation can recover from a ransomware attack without paying the ransom — because the immutable copy is yours to restore.
Why work with us
Immutable WORM storage
Write-once-read-many storage that cannot be modified, encrypted, or deleted — even by compromised administrator accounts — during the defined retention window.
Air-gapped recovery environment
Physically or logically isolated recovery environment that is disconnected from the production network except during scheduled replication windows — invisible to ransomware that spreads laterally.
3-2-1-1 backup architecture
Three copies of data, two different media types, one off-site copy, and one immutable air-gapped copy — ransomware cannot reach all copies simultaneously.
Automated recovery testing
Scheduled recovery tests verify that backups are restorable — not just present. Failed tests trigger alerts and automated remediation workflows.
Rapid ransomware recovery
Pre-configured recovery playbooks for common ransomware scenarios — full environment restore, selective file recovery, or instant VM recovery from the immutable copy.
Encryption key separation
Backup encryption keys managed separately from production infrastructure. A compromised production environment cannot access or manipulate backup encryption.
Key benefits
What this solution delivers for your business.
Recover without paying the ransom
Immutable, air-gapped backups mean you can restore your data without negotiating with attackers. The ransom demand becomes irrelevant when the data is recoverable.
Protection against backup-targeting attacks
Ransomware that specifically targets backup repositories cannot modify or delete immutable WORM storage — the recovery copy survives the attack.
Verified recoverability
Scheduled recovery testing ensures backups are restorable when you need them. Test failures are detected and remediated before a real incident.
Defence against insider threats
Immutable storage with administrative access controls prevents even privileged users from deleting or modifying backup data during the retention window.
Compliance with data retention requirements
Immutable, encrypted backups satisfy regulatory requirements for data retention, chain-of-custody, and secure destruction — with audit-trail of all backup and recovery operations.
Predictable recovery time objectives
Pre-configured recovery playbooks with tested timelines — your RTO for different recovery scenarios is known and documented, not discovered under incident pressure.
What's included
Part of this managed service.
Immutable backup storage
WORM storage targets that prevent modification or deletion of backup data during the retention window.
- WORM-compliant storage
- Object lock / retention policy
- Immutable for defined period
- Administrator-proof
Air-gapped recovery
Physically or logically isolated recovery environment with scheduled replication windows.
- Disconnected during production
- Scheduled replication windows
- No inbound connectivity
- One-way data flow
Multi-platform backup
Backup agents and integration for servers, databases, virtual machines, cloud workloads, and SaaS applications.
- VMware/Hyper-V backup
- SQL/Oracle/PostgreSQL backup
- Cloud workload (AWS/Azure/GCP)
- Microsoft 365 backup
Ransomware detection
Anomaly detection in backup data — unusual file encryption patterns, rapid file modification rates, or unexpected deletion activity.
- Encryption pattern detection
- File modification anomaly
- Rapid-change alerting
- Automated protection
Recovery testing and automation
Scheduled recovery tests with automated validation and reporting.
- Scheduled recovery drills
- Automated validation
- Test failure notification
- RTO/RPO compliance reporting
Where it helps
Real-world scenarios where this solution delivers measurable outcomes.
Ransomware defence for enterprise
Deploy immutable, air-gapped backups across all critical systems — servers, databases, VMs, cloud workloads, and Microsoft 365 — with automated recovery testing.
Regulated industry compliance
Financial services, healthcare, or government organisations requiring immutable backups for compliance — SOC 2, HIPAA, PCI DSS, RBI/SEBI guidelines.
Microsoft 365 protection
Complement Microsoft native retention with independent, immutable backups of Exchange, SharePoint, OneDrive, and Teams — protection against ransomware that targets cloud productivity data.
Questions buyers actually ask
How is immutable storage different from regular backup?
Regular backup stores can be modified or deleted by compromised accounts. Immutable WORM storage prevents any modification during the retention window — even the administrator who configured it cannot delete or alter the data.
Can I recover individual files or only full systems?
Both — granular file-level recovery for quick restores, and full-system recovery for complete environment restoration. Recovery options are defined during the architecture design phase.
How long does full recovery take?
Recovery time depends on data volume and infrastructure — from hours for critical servers to days for full environments. Recovery playbooks are tested and documented during deployment, not guessed at during an incident.
Do I need dedicated backup hardware?
Not necessarily. Backups can be stored on-premise (dedicated appliance or NAS), in cloud object storage (AWS S3, Azure Blob, GCP Cloud Storage with object lock), or hybrid — depending on your recovery time objectives and data volume.
Ready to scope a solution?
Talk to a Clevertek solutions architect about your requirements — no obligation.