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A.5.37ISO 27001:2022 Annex A

Documented operating procedures

ISO/IEC 27002:2022 attributes

Control type
Preventive · Corrective
Security properties
Confidentiality · Integrity · Availability
Cybersecurity concept
Protect · Recover
Operational capability
Asset management · Physical security · System and network security · Application security · Secure configuration · Identity and access management · Threat and vulnerability management · Continuity · Information security event management
Security domain
Governance and ecosystem · Protection · Defence

Attribute tags as published in ISO/IEC 27002:2022, compiled from public listings — confirm against your licensed copy.

Plain-language summary

Writing down the procedures for operating information processing facilities — from server and network administration to backups, scheduled jobs and recovery — and making them available to the people who need them, so critical operations do not live in one person's head.

What the clause is really asking

If your network administrator resigned tomorrow, could someone else restart the systems, restore a backup or run the month-end jobs? This control asks you to write down how your information processing facilities are operated and to put those procedures in the hands of the people who need them. Typical procedures cover installation and configuration of systems; processing and handling of information, automated and manual; backup and restore; scheduling and dependencies between jobs; handling errors and exceptional conditions; support and escalation contacts, including suppliers; restart and recovery after failure; media handling; log management and monitoring; and maintenance. Procedures should be approved, kept current through change management, and written for the person who has to follow them. They matter most when an activity is done rarely, by different people, or across several sites. The common misunderstanding is that vendor manuals are the procedures; they describe the product, not your configuration of it. ISO 9001 practitioners already know the discipline from work instructions under 7.5 and controlled conditions under 8.5.1, and the same approach applies to IT operations.

What auditors look for

Auditors ask which IT operations are critical and request the procedures for two or three of them: backup and restore, a server or firewall change, month-end processing, setting up a new user. They check the procedures are approved, current and accessible to the people who use them, including when systems are down. They interview an administrator, ask them to show where the procedure is and walk through it, and compare the written steps with what they describe. They look for procedures updated after the last related change. The hard question: who else can do this task if the person who normally does it is unavailable?

Typical evidence

Index of documented operating procedures with owner, version and review date; procedures for backup and restore, system start-up and shutdown, user administration, scheduled jobs, patching and monitoring; offline or printed copies for use during recovery; change records showing procedure updates; access arrangements for the personnel who need them; training or sign-off records.

How to comply — recommendations

List the IT operations that are critical, risky or done rarely, and for each write a procedure of one to three pages in the format you already use for ISO 9001 work instructions: purpose, prerequisites, steps, checks, rollback, contacts. Start with backup and restore, joiners and leavers, patching, firewall changes and system recovery. Store them in your controlled document system, with an offline copy for use when systems are down. Make updating the procedure a closing step of every change request. Once a year, ask a second person to follow each critical procedure as a test, and fix whatever they stumble on.

Common nonconformities

Critical IT operations undocumented and dependent on one person; procedures out of date after system changes; procedures not accessible during an outage; vendor manuals used in place of procedures for the organisation's own configuration; procedures not approved or version-controlled; outsourced IT provider's procedures never seen or agreed.

Related clauses

ISO/IEC 27002:2022 5.37 (guidance); ISO 27001 7.5 (documented information), 8.1 (operational planning and control); Annex A 8.32 (change management), 8.13 (backup), 8.15 (logging), 8.9 (configuration management), 5.30 (ICT readiness); NIST CSF 2.0 GV.PO (policy), PR.PS (platform security); ISO 9001 7.5, 8.5.1.

Resources for this clause

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