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Last edited 25 Aug 2026

ISO 22301 Lead Auditor: Building Stronger Disaster Recovery Audit Skills

1 Introduction
2 ISO 22301 and disaster recovery
3 The role of a lead auditor
4 Audit skills for disaster recovery professionals
5 Reviewing disaster recovery arrangements
6 Testing and exercising recovery arrangements
7 Collecting and evaluating audit evidence
8 Conducting effective interviews
9 Identifying and reporting audit findings
10 Corrective action and root cause
11 Using audits for continual improvement
12 Preparing for ISO 22301 audits
13 Documentation and management system controls
14 Training and professional development
15 Building an effective audit culture
16 Applying lead auditor skills in practice
17 Conclusion
18 Related articles on Designing Buildings

[edit] Introduction

Disaster recovery forms part of an organisation's broader approach to business continuity. It focuses particularly on the recovery of information technology, systems, data, services and other capabilities following disruptive events. Effective recovery depends not only on technical arrangements but also on defined responsibilities, appropriate resources, tested procedures and alignment with wider business requirements.

ISO 22301:2019, Security and resilience — Business continuity management systems — Requirements, specifies requirements for establishing, implementing, maintaining and continually improving a Business Continuity Management System (BCMS). It is applicable to organisations of different types and sizes and is intended to support their ability to continue delivering products and services at an acceptable predefined capacity during disruption.

An ISO 22301 lead auditor course is intended to develop knowledge and skills for planning and conducting management system audits against ISO 22301 requirements. The emphasis is on auditing the BCMS rather than simply checking individual disaster recovery procedures. Training may cover audit planning, evidence collection, interviews, evaluation of processes, reporting, findings and follow-up activities.

ISO 22301:2019 remains the current published edition as of August 2026, although a third edition is under development. The draft edition is intended to replace ISO 22301:2019.

[edit] ISO 22301 and disaster recovery

Disaster recovery and business continuity are closely related but are not synonymous. Disaster recovery generally concerns the restoration of technology, data, systems and services following a disruptive event, whereas business continuity addresses the wider organisational capability needed to continue critical activities during and after disruption.

ISO 22301 provides a management system framework for business continuity. It requires an organisation to establish arrangements for preparing for, responding to and recovering from disruptive incidents. This broader perspective allows technical recovery arrangements to be considered alongside business requirements, dependencies, responsibilities, resources and continuity objectives.

For disaster recovery professionals, understanding the BCMS is therefore useful when evaluating whether technical recovery arrangements support the organisation's wider continuity requirements. An audit may identify weaknesses that would not be apparent from examining a recovery procedure or technology platform in isolation.

[edit] The role of a lead auditor

A lead auditor is responsible for managing or leading an audit in accordance with the agreed audit objectives, scope and criteria. Lead auditor training is intended to develop competence in the audit process; completion of a training course does not, by itself, establish that an individual has all the experience or competence required to conduct every type of audit.

Management system auditing involves obtaining and evaluating evidence against defined audit criteria. ISO 19011 provides guidance on auditing management systems, including audit principles, audit programme management, conducting audits and evaluating auditor competence. ISO 19011:2026 was published in May 2026 and replaced the 2018 edition.

For an ISO 22301 audit, the criteria will normally include applicable requirements of ISO 22301 together with relevant organisational policies, procedures, contractual requirements and applicable legal or regulatory requirements within the agreed audit scope.

[edit] Audit skills for disaster recovery professionals

Lead auditor training can develop skills in:

defining audit objectives, scope and criteria;
planning audit activities;
reviewing documented information;
collecting and evaluating audit evidence;
interviewing personnel;
observing processes and activities;
evaluating conformity against audit criteria;
recording and communicating audit findings;
preparing audit reports; and
following up corrective actions.

These skills can be applied to internal audits, supplier assessments and other management system audit activities where appropriate. They can also help disaster recovery professionals assess whether documented arrangements are implemented effectively rather than relying solely on the existence of procedures.

[edit] Reviewing disaster recovery arrangements

An audit of business continuity arrangements should consider whether recovery activities are integrated into the organisation's wider BCMS. Recovery procedures should identify appropriate responsibilities, resources, dependencies and actions for relevant scenarios.

Auditors may review documented recovery procedures, system inventories, dependency information, communication arrangements, recovery exercise results, training records and evidence of previous incidents. The objective is not simply to establish that documents exist but to determine whether the arrangements meet the applicable audit criteria and are implemented effectively.

Particular attention may be required where systems, suppliers, technologies, premises or organisational responsibilities have changed. A new information technology platform, for example, may alter dependencies and recovery requirements. Related business continuity and disaster recovery information should be reviewed to determine whether the change has been incorporated into the BCMS.

[edit] Testing and exercising recovery arrangements

Testing and exercising provide evidence about whether documented arrangements can operate as intended. A recovery plan may appear complete when reviewed as a document but reveal practical weaknesses during an exercise.

An exercise might identify that employees do not have access to required systems, contact information is inaccurate, recovery responsibilities are unclear or a dependency has not been adequately considered. These findings can provide evidence for corrective action and improvement.

The type and frequency of exercises should be appropriate to the organisation's circumstances and continuity requirements. Exercise results should be recorded and reviewed so that identified weaknesses can be addressed and lessons incorporated into relevant processes.

[edit] Collecting and evaluating audit evidence

Audit conclusions should be based on appropriate evidence. Evidence may include documented information, records, observations, interviews, test results and other information relevant to the audit criteria.

Disaster recovery audits may examine recovery test results, backup records, incident reports, recovery procedures, communications records, training records and evidence of corrective actions. The auditor should evaluate whether the evidence is sufficient and relevant to support the audit conclusion.

Interviews can provide information about how procedures operate in practice. However, statements made during interviews should normally be considered alongside other evidence rather than treated in isolation. Comparing employee responses with documented procedures, records and observations can help establish whether the BCMS is implemented as intended.

[edit] Conducting effective interviews

Interviews are an important method of obtaining audit evidence. Questions should be clear, relevant to the person's responsibilities and designed to establish how processes operate in practice.

For example, an auditor might ask an employee to explain the actions their team would take following the loss of a critical system. The response can then be compared with the relevant documented arrangements and other available evidence.

Where differences are identified, the auditor can ask additional questions to establish whether the difference represents a misunderstanding, an undocumented practice, an outdated procedure or another issue requiring investigation.

[edit] Identifying and reporting audit findings

An audit finding should identify the relevant audit evidence and explain the basis for the auditor's conclusion. A statement such as "recovery planning is weak" is unlikely to provide sufficient information to support effective corrective action.

A well-defined finding should make clear what was observed, which requirement or audit criterion applies and what evidence supports the conclusion. Findings should be factual and objective, avoiding unsupported assumptions about the cause or significance of an issue.

The classification of findings, such as nonconformities or opportunities for improvement, should follow the applicable audit criteria and certification or organisational procedures. The auditor should not prescribe corrective actions where this would compromise the auditor's objectivity or independence.

[edit] Corrective action and root cause

Corrective action is intended to address the cause of a nonconformity or other identified problem so that recurrence can be prevented or reduced. The immediate correction and the longer-term corrective action are not necessarily the same.

For example, if an exercise demonstrates that employees do not understand their assigned recovery roles, an immediate response might be to clarify those roles. Further investigation may identify that training was incomplete, responsibilities had changed or documentation had not been updated. Addressing the underlying cause is more likely to prevent recurrence than repeating the immediate instruction alone.

Auditors can review whether corrective actions address identified findings and whether there is evidence that the actions have been implemented and are effective where effectiveness can appropriately be evaluated.

[edit] Using audits for continual improvement

Auditing can provide information for improving the BCMS. Individual findings may reveal isolated issues, while recurring findings or related weaknesses may indicate a broader problem with documentation, training, testing, resource allocation or management processes.

Trend analysis can therefore be useful. Several findings relating to employee awareness, for example, may indicate that training arrangements require review. Repeated weaknesses in recovery exercises may indicate that exercise design, resources or procedures need to be reconsidered.

Audit results can be considered alongside incidents, exercises, management reviews, performance information and other sources of organisational learning. This supports the continual improvement approach incorporated into ISO 22301.

[edit] Preparing for ISO 22301 audits

Audit preparation should be an ongoing activity rather than something undertaken immediately before an assessment. Recovery and continuity teams can maintain current procedures, review relevant records and track actions arising from exercises, incidents and previous audits.

Employees with recovery responsibilities should understand their roles and know where relevant information can be found. Changes to systems, suppliers, premises, organisational structures and responsibilities should trigger appropriate review of continuity and recovery arrangements.

An organisation preparing for an audit should also ensure that documented information accurately reflects current practice. A discrepancy between procedures and actual working practices can provide evidence of a weakness in the management system even where the underlying recovery capability is technically sound.

[edit] Documentation and management system controls

Documentation should support the operation of the BCMS rather than exist solely for audit purposes. Relevant information may include business continuity policies, scope and objectives, business impact information, risk assessments, continuity strategies, plans and procedures, exercise results, incident records, training information and corrective action records.

Documents and records should be controlled so that personnel use appropriate and current information. Changes to technology, processes, responsibilities or organisational arrangements may require associated documents to be reviewed.

From an auditor's perspective, documentation is one source of evidence. Its existence does not demonstrate that a process is effective. The auditor should consider whether documented arrangements are implemented and supported by appropriate objective evidence.

[edit] Training and professional development

An ISO 22301 lead auditor course can provide structured training in management system auditing, but practical auditing competence develops through application and experience. Training may include exercises involving audit planning, document review, interviews, evidence evaluation and preparation of findings.

Online delivery can provide flexibility for professionals whose roles involve operational responsibilities, although the value of a course depends on its content, assessment methods, tutor competence and opportunities to practise audit activities.

When evaluating a course, relevant considerations can include the syllabus, learning objectives, duration, delivery method, practical exercises, assessment arrangements, learning materials and the relationship between the training and the applicable ISO 22301 requirements.

[edit] Building an effective audit culture

Auditing is most effective when it is treated as a structured method of evaluating and improving management systems rather than simply as a fault-finding exercise. Auditors should maintain objectivity, base conclusions on evidence and communicate findings clearly.

Employees should be able to describe how continuity and recovery arrangements operate in practice, including any difficulties they encounter. Open reporting can help organisations identify weaknesses before they become significant during an actual disruption.

Management should respond appropriately to audit findings and ensure that agreed actions are followed through. This creates a feedback loop between audit, corrective action, testing and improvement.

[edit] Applying lead auditor skills in practice

Lead auditor knowledge can be applied through internal audits, recovery exercises, document reviews, supplier assessments and corrective action reviews. Participation in these activities provides opportunities to develop skills in questioning, evidence evaluation, finding preparation and reporting.

Disaster recovery professionals can also use audit techniques when reviewing their own processes. Asking whether a procedure is current, whether employees understand it, whether it has been tested and what objective evidence demonstrates its effectiveness can reveal weaknesses that may otherwise remain unnoticed.

The purpose is not to turn every recovery activity into an audit. Rather, audit principles can provide a structured way of examining whether continuity and recovery arrangements are planned, implemented, maintained and improved.

[edit] Conclusion

ISO 22301 provides a management system framework for business continuity, while disaster recovery forms part of the arrangements that can support the recovery of technology, data, services and other capabilities following disruption. A lead auditor therefore needs to understand the relationship between technical recovery arrangements and the wider BCMS.

Lead auditor training can develop knowledge of audit planning, evidence collection, interviewing, evaluation, reporting and corrective action. These skills can help professionals assess whether documented arrangements are implemented effectively and whether evidence supports conformity with defined requirements.

The value of auditing extends beyond identifying individual weaknesses. When audit findings, exercises, incidents and corrective actions are reviewed systematically, they can provide information for continual improvement and contribute to greater organisational resilience.