Shield53's cloud backup platform is built on a storage architecture designed to meet the security, compliance, and resilience requirements of enterprise environments. Every feature — from encryption and immutability to geographic redundancy — is engineered to ensure that backup data remains protected, recoverable, and tamper-proof, even in the face of ransomware attacks or insider threats.

Ransomware defence: When immutability is enabled, backup data cannot be modified, encrypted, or deleted — by anyone, including administrators — until the retention period expires. Even if an attacker gains privileged access, your backup data remains intact and recoverable.

Immutable Storage

Immutability is the single most important defence against ransomware targeting backup infrastructure. Shield53's immutability feature is configurable within Grandfather-Father-Son (GFS) retention policies, allowing organizations to define immutability windows that align with their compliance and recovery requirements.

Encryption at Every Layer

Encryption Architecture
In transit — TLS 1.2+ encryption during transfer between client and Shield53 storage infrastructure
At rest — AES-256 encryption with per-tenant keys, ensuring each organization's data is cryptographically isolated
Key management — encryption keys managed independently from storage infrastructure, preventing single-point compromise

Data Segmentation

Shield53 enforces strict data segmentation at the storage level. Each tenant's backup data is stored in a dedicated Storage Vault with its own encryption keys, access controls, and retention policies. This architecture ensures that:

  • No tenant can access another tenant's data, even in the event of a misconfiguration
  • Encryption key compromise for one tenant does not affect any other tenant
  • Retention and immutability policies are enforced independently per tenant

Geographic Redundancy

Backup data is replicated across geographically distributed data centres to protect against regional outages, natural disasters, and infrastructure failures. Organizations can select their preferred storage regions to meet data residency requirements, with replication occurring automatically between facilities.

Versioning and Point-in-Time Recovery

The platform maintains multiple versions of backed-up files and system images, enabling point-in-time recovery to any retained snapshot. This is critical for ransomware recovery scenarios where the exact time of encryption must be identified and a clean restore point selected.

Compliance and Audit

SOC 2 Type II
Independently audited security controls for service organizations
HIPAA
Protected health information safeguards and breach notification compliance
PIPEDA
Canadian personal information protection and privacy requirements
GDPR
European data protection regulation with data residency and right-to-erasure support

Comprehensive audit logging tracks all access to backup data, configuration changes, and restore operations — providing the evidence trail required for regulatory audits and incident investigations.

Contact Shield53 to learn how our enterprise backup storage can protect your organization's critical data against ransomware, accidental deletion, and compliance risk.