ISO 27001 Annex A guide

ISO 27001 Annex A 8.13: Information backup

Create protected, recoverable copies aligned with business recovery and information-retention needs. This independent guide turns that purpose into practical ownership, operating evidence and auditor-ready testing.

Control
8.13
Category
Technological controls
Primary outcome
Create protected, recoverable copies aligned with business recovery and retention needs.

What Control 8.13 means in practice

Create protected, recoverable copies aligned with business recovery and retention needs. Test the control through the organisation's actual scope, decisions, ownership and operating records rather than relying on a policy reference alone.

For information backup, proportional design depends on the affected services, information, people and dependencies. The evidence below should be adapted to that real boundary.

Implementation steps

  1. Step 1. Define ownership, scope and operating criteria for information backup.
  2. Step 2. Implement continuity arrangement that fits the organization’s risks, services and working practices.
  3. Step 3. Integrate the activity with relevant change, exception and review processes.
  4. Step 4. Review performance and improve the arrangement when risks, technology or obligations change.

What good implementation looks like

  • successful restore evidence for representative services
  • failed jobs investigated and recurring causes removed
  • restore results measured against recovery objectives

Implementation evidence and effectiveness evidence

Evidence the control is implemented

  • approved continuity arrangement
  • exercise and recovery records
  • assigned ownership and approval evidence
  • sample implementation, review and exception records

Evidence the control is effective

  • successful restore evidence for representative services
  • failed jobs investigated and recurring causes removed
  • restore results measured against recovery objectives

How an auditor may test Control 8.13

  1. Select a representative in-scope service, asset or process.
  2. Confirm the accountable owner and expected operation.
  3. Trace a recent example: A critical database is restored into an isolated environment and application checks confirm usability.
  4. Inspect the operating record and corroborating technical evidence.
  5. Compare the design with evidence that the control operated effectively.
  6. Follow an exception or adverse result through decision and closure.
  7. Review trends, metrics and improvement decisions.

Questions to prepare for

  • How is information backup implemented in practice?
  • Who owns the activity and how are decisions approved?
  • Show me a recent example from operation through review.
  • How are exceptions, changes or overdue actions handled?

Practical examples

Example 1

A critical database is restored into an isolated environment and application checks confirm usability.

Example 2

Backup administrator access is separated from production administration.

Example 3

SaaS backup scope includes configuration and data not covered by provider recovery.

Illustrative decision and evidence record

Control outcomeCreate protected, recoverable copies aligned with business recovery and retention needs.
Illustrative activityA critical database is restored into an isolated environment and application checks confirm usability.
Evidence sampleapproved continuity arrangement
Effectiveness signalsuccessful restore evidence for representative services
Auditor questionHow is information backup implemented in practice?
Failure to challengedocumenting information backup without consistent operation

Reviewer note: Test information backup with a recent real example; a current operating record normally reveals more than policy wording alone.

Useful performance and coverage measures

  • backup-job success and unresolved failures
  • restore-test success
  • critical services without current restore evidence

Approach for smaller and mature organizations

Smaller organization

Use a clear owner, a proportionate working record, built-in platform capability and a scheduled review. Sample real activity instead of creating duplicate paperwork for information backup.

Mature or complex organization

Define service-level ownership, automated coverage reporting, integrated workflow, risk-based exceptions and independent assurance across business units and technology platforms.

Practical implementation checklist

  • □ Define ownership, scope and operating criteria for information backup.
  • □ Implement continuity arrangement that fits the organization’s risks, services and working practices.
  • □ Integrate the activity with relevant change, exception and review processes.
  • □ Review performance and improve the arrangement when risks, technology or obligations change.
  • □ Sample evidence has been checked for operation and effectiveness.
  • □ Exceptions have owners, rationale, review dates and closure evidence.

Common implementation mistakes

  • documenting information backup without consistent operation
  • unclear ownership or review frequency
  • evidence that does not cover the full ISMS scope
  • exceptions accepted without risk-based approval or follow-up

Frequently asked questions

Are successful backup jobs enough?

No. Restore testing demonstrates that copies are usable and that people can recover the service.

Must backups be offline?

No single storage pattern is mandated; separation, immutability or offline copies may be selected based on threats such as ransomware.

Does provider redundancy replace backup?

Not necessarily. Redundancy supports availability, while backup supports recovery from deletion, corruption and other scenarios.

Use the interactive control lookup

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