# BSI C5:2020 OPS-09 — Data Backup and Recovery - Storage

- Source: https://support.icompaas.com/compliance/bsi-c5-2020/ops-09-data-backup-and-recovery-storage
- Section: [Compliance](https://support.icompaas.com/compliance) › [BSI C5:2020 (Cloud Computing Compliance Criteria)](https://support.icompaas.com/compliance/bsi-c5-2020) › Operations Security (OPS)
- Last updated: 2026-06-05
- Publisher: iCompaas, Inc. (https://www.icompaas.com)

**BSI C5:2020**·Criterion `OPS-09`·critical·Component: **Operations Security**

## What this control requires

> Transfers encrypted backups to secure remote locations with equivalent security measures as main sites. Ensures sufficient distance to meet recovery times, protecting cloud customer data from site-specific disasters and ensuring availability.
> 
> — BSI C5:2020, Criterion OPS-09

### In plain English

Transfers encrypted backups to secure remote locations with equivalent security measures as main sites. In practice, this means you can prove you security measures-level controls on a defined cadence.

## Why it matters

BSI C5 is the default cloud-security baseline German public-sector buyers and many DAX-listed enterprises expect; gaps here directly block procurement in the DACH region and frequently appear as must-have items in EU public-tender documents.

This control is rated **critical** in the source catalogue. Treat gaps here as production incidents in the risk register, not housekeeping.

## What an auditor looks for

A C5 attesting auditor (under ISAE 3000 / IDW PS 860) tests both the design and — for a Type 2 — the operating effectiveness over the attestation period. For each criterion they look for both the Basic and any in-scope Additional objectives.

Within **Operations Security**, the assessor will trace your implementation back to the catalogue reference (Criterion OPS-09) and look for objective evidence on the latest two assessment cycles.

## How to implement

#### Cloud Posture

**CSPM.** Run Wiz / Prisma / Defender for Cloud / Security Command Center over every account; auto-ticket findings above your accepted-risk threshold.

#### Configuration Management

**Policy-as-code.** Codify the control as Service Control Policies (AWS), Azure Policy initiatives, or Organisation Policy (GCP) so the platform enforces what the document promises.

**IaC.** Gate Terraform / Pulumi / CloudFormation changes with Checkov / tfsec / OPA so misconfigurations never reach production.

**Drift.** Run a CSPM (Wiz / Prisma / Defender for Cloud / Security Command Center) over every account and route findings to a single risk register.

#### Network Security

**AWS.** VPC Flow Logs to S3, default-deny security groups, AWS Network Firewall for north-south, and Transit Gateway for hub-and-spoke segmentation.

**Azure.** NSGs with deny-by-default, Azure Firewall Premium with TLS inspection, Private Endpoints for PaaS, and Microsoft Defender for Cloud's secure score for drift.

**GCP.** VPC Service Controls perimeters around sensitive APIs, Cloud NGFW Enterprise for L7 inspection, Private Service Connect for managed services.

### Operational checklist

-   **Security.** Document the trigger, the owner and the cadence.
-   **Protection.** Document the trigger, the owner and the cadence.
-   **Data.** Document the trigger, the owner and the cadence.
-   **Data Backup.** Document the trigger, the owner and the cadence.
-   **Secure.** Document the trigger, the owner and the cadence.
-   **Scope:** measures, protection, recovery - storage, - configuration, cloud customer data, business continuity, management.

## Evidence to collect

-   **Infra Scan.** Continuous infrastructure-posture telemetry — AWS Config, Azure Policy compliance, GCP Organisation Policy, Wiz / Prisma findings.

Infrastructure posture tooling (AWS Config, Azure Policy, Nessus) verifies platform hardening. Focus: Data Backup and Recovery - Storage.

## Common pitfalls

-   Treating CSPM findings as a backlog instead of a hot queue: findings older than the policy SLA accumulate until the auditor asks why.
-   Manual cloud-console changes that never make it back to Terraform — drift accumulates until the next outage forces a reconciliation.
-   Default-allow egress rules; East-West traffic with no segmentation; jump hosts on the public internet with password auth.

## How it maps to other frameworks

Computed from shared tags, control component and key-operation subjects — handy when you are reconciling controls across an audit.

-   [**NIST SP 800-171 Rev. 3 3.8.9** — System Backup - Cryptographic Protection](https://support.icompaas.com/compliance/nist-sp-800-171-rev-3/3-8-9-system-backup-cryptographic-protection)
-   [**NIST SP 800-53 Rev. 5 CP-9(5)** — Transfer To Alternate Storage Site](https://support.icompaas.com/compliance/nist-sp-800-53-rev-5/cp-9-5-transfer-to-alternate-storage-site)
-   [**CIS Controls v8 11.3** — Protect Recovery Data](https://support.icompaas.com/compliance/cis-controls-v8/11-3-protect-recovery-data)

## Related controls in BSI C5:2020

-   [**Criterion OPS-07** — Data Backup and Recovery - Monitoring](https://support.icompaas.com/compliance/bsi-c5-2020/ops-07-data-backup-and-recovery-monitoring)
-   [**Criterion OPS-01** — Capacity Management - Planning](https://support.icompaas.com/compliance/bsi-c5-2020/ops-01-capacity-management-planning)
-   [**Criterion PS-02** — Redundancy model](https://support.icompaas.com/compliance/bsi-c5-2020/ps-02-redundancy-model)
-   [**Criterion CRY-04** — Secure key management](https://support.icompaas.com/compliance/bsi-c5-2020/cry-04-secure-key-management)
-   [**Criterion CRY-03** — Encryption of sensitive data for storage](https://support.icompaas.com/compliance/bsi-c5-2020/cry-03-encryption-of-sensitive-data-for-storage)
-   [**Criterion PI-03** — Secure deletion of data](https://support.icompaas.com/compliance/bsi-c5-2020/pi-03-secure-deletion-of-data)

## References

-   [Bundesamt für Sicherheit in der Informationstechnik (BSI) — BSI C5:2020](https://www.bsi.bund.de/EN/Topics/CloudComputing/Compliance_Criteria_Catalogue/Compliance_Criteria_Catalogue_node.html)
-   Catalogue identifier: `Criterion OPS-09`

Topics: data protectionbusiness continuitycloud infrastructurecloud posturebackup recoveryconfiguration managementnetwork security

## Related compliance guidance

- [SOC 2 compliance: a practical implementation guide for cloud-native SaaS teams](https://support.icompaas.com/compliance/soc-2-trust-services-criteria): Configuration checks like this one are the technical half of a SOC 2 / ISO 27001 programme — the guide shows where they fit, what else an auditor expects, and how to evidence them.
- [ISO/IEC 27001:2022 compliance: a practical implementation guide](https://support.icompaas.com/compliance/iso-27001-2022): ISO 27001 Annex A.8 (technological controls) is where cloud hardening evidence lands; the guide shows how to run the ISMS around it.
