/

  / ISO 27001 Business Continuity Requirements Guide

ISO 27001 Business Continuity Requirements Guide

Two controls decide whether your ISO 27001 business continuity plan survives an audit: Annex A 5.29 and Annex A 5.30. One keeps your security controls working while everything else is failing. The other gets your systems back online before the damage becomes permanent.

Plenty of teams write a continuity policy that satisfies neither in the way a certification auditor expects, and they discover the gap during the Stage 2 audit, when it is expensive to fix.

This article covers what ISO 27001:2022 actually requires for business continuity, the components an auditor will ask to see, the step-by-step build, and the mistakes that turn a continuity plan into a non-conformity.

ISO 27001 Business Continuity Plan

What Is an ISO 27001 Business Continuity Plan?

An ISO 27001 business continuity plan is the documented set of procedures that keeps information security effective and critical ICT services available during a disruption. It is not a generic “keep the lights on” binder. Under ISO 27001, the plan protects the confidentiality, integrity, and availability of information when normal operations break down: a ransomware event, a cloud outage, a data center failure, or a supplier collapse.

The plan lives inside your Information Security Management System (ISMS). It draws on your risk assessment, your asset register, and your Business Impact Analysis (BIA), and it feeds your disaster recovery procedures. Scope is the part people get wrong. ISO 27001 cares about the information security aspects of continuity, not every operational hiccup a full business continuity program might cover.

 

Why You Need a Business Continuity Plan for ISO 27001 Compliance

Downtime is expensive, and the bill arrives fast. For most organizations, the question is not whether a disruption will happen, but how quickly they recover when it does.

There is also a hard compliance reason. You cannot certify to ISO 27001 while ignoring continuity. The standard requires you to maintain information security during disruption and to keep ICT able to support recovery, and an auditor will ask for the evidence. A continuity plan is where availability stops being a promise and becomes a tested capability.

Let Axipro help you build a business continuity plan that's practical, compliant, and audit-ready.

Strengthen Your Business Continuity Strategy

ISO 27001 Requirements Related to Business Continuity Planning

ISO/IEC 27001:2022 carries 93 Annex A controls across four categories: organizational, people, physical, and technological. Continuity sits in the organizational set, and two controls do the heavy lifting, supported by two more on the technical side.

Annex A 5.29 – Information Security During Disruption

A.5.29 requires you to maintain information security at an appropriate level when a disruption hits. The point is that security controls have a habit of degrading under pressure. People disable multi-factor authentication to “speed things up,” logging stops on a failover system, or access controls loosen while everyone scrambles. A.5.29 says the confidentiality and integrity of your information must be maintained even while availability is under threat. It is classed as both a preventive and a corrective control, meaning it should reduce the chance of an incident and also help resolve one already underway.

Annex A 5.30 – ICT Readiness for Business Continuity

A.5.30 is the technical engine. It requires that your ICT readiness is planned, implemented, maintained, and tested against business continuity objectives and ICT continuity requirements. In plain terms, your servers, networks, applications, and cloud services need a defined recovery path, each with a Recovery Time Objective (RTO) and Recovery Point Objective (RPO), and you need to prove the path works. This control is entirely new in the 2022 revision. It has no precedent in ISO 27001:2013, which is exactly why teams migrating from the older version so often have a gap here.

Important: A.5.30 did not exist in ISO 27001:2013. If your continuity documentation was written against the old Annex A 17 cluster and never updated, you are missing a control the auditor will specifically test. Treat ICT readiness as a fresh requirement, not a relabel.

Two technological controls back these up.

  • Annex A 8.13 (Information Backup) requires backups to be taken and tested in line with an agreed policy, and
  • Annex A 8.14 (Redundancy of Information Processing Facilities) covers the failover and redundancy that let critical systems keep running when a component dies.

Relationship Between ISO 27001 and ISO 22301

This is where confusion is common. ISO 27001 requires the information security aspects of continuity. ISO 22301 is the dedicated standard for a full Business Continuity Management System (BCMS), covering people, facilities, supply chain, and operations far beyond information security. An ISO 27001 certificate does not certify your wider continuity program.

The good news: both standards share the Annex SL high-level structure, so risk assessment, internal audit, management review, and document control carry across. Teams that already run ISO 27001 can layer ISO 22301 on top with far less effort than starting from scratch.

ISO 27001 Business Continuity Plan

Key Components of an ISO 27001 Business Continuity Plan

Business Impact Analysis (BIA)

The BIA is the foundation. It identifies your critical business processes, the ICT systems they depend on, and the cost of losing each one over time. It is where your recovery objectives come from, not from a vendor datasheet. A BIA also sets the Maximum Tolerable Period of Disruption (MTPD): the point beyond which an activity’s failure causes unacceptable damage.

Risk and Disruption Scenario Assessment

Your risk assessment identifies what could cause a disruption and how likely it is, feeding the Risk Treatment Plan and the Statement of Applicability (SoA) that records which controls apply. Continuity planning then runs concrete scenarios: ransomware, a regional outage, a key supplier failure, the loss of a data center.

Response and Recovery Strategies

For each critical system, you define how you will respond and recover: failover to a secondary site, restore from backup, or switch to a manual workaround. This links incident response to crisis management, the executive-level decision-making that kicks in when an incident escalates beyond a routine fix.

Roles and Responsibilities

Name real people, not departments. “IT will handle it” is the single most common reason a plan fails under pressure. Every critical system and recovery step needs a named owner and a named deputy, with current contact details and the authority to act.

Pro Tip: Replace every instance of "IT" or "the business" in your plan

Replace every instance of "IT" or "the business" in your plan with a person's name and a backup name. Auditors increasingly check whether the primary responder for a critical system can actually describe their role. A swim-lane diagram showing who does what, in order, is worth more than ten pages of policy prose.

Communication Plan

Decide in advance who tells customers, regulators, staff, and partners, through which channels, and on what timeline. Many disruptions become reputational events not because recovery was slow but because the silence was loud.

Backup and Redundancy Measures

This is Annex A 8.13 and 8.14 in practice. The widely used benchmark is the 3-2-1 rule: three copies of data, on two media types, with one off-site and ideally immutable. The U.S. Cybersecurity and Infrastructure Security Agency still recommends this baseline, with an additional offline or immutable copy as ransomware defense. Redundancy means no single point of failure can take down a critical service on its own.

Testing, Maintenance, and Continual Improvement

A plan that has never been tested is a hypothesis. ISO 27001 expects testing at planned intervals, typically at least annually and after any significant change. This is the Continual Improvement half of the PDCA cycle: test, capture what failed, fix it, retest. Our guide to Testing Maintenance and Continual Improvement covers the cadence in detail.

How to Create an ISO 27001 Business Continuity Plan: Step-by-Step

Step 1: Secure Management Support

Continuity planning needs budget and authority. Get senior management to own the objectives, because A.5.30 plans must be approved at that level and the BIA needs sign-off to carry weight in an audit.

Step 2: Conduct a Business Impact Analysis

Map every critical process to its supporting systems, suppliers, and data. Quantify the impact of losing each one at intervals such as 1 hour, 24 hours, and one week, and use that to rank what gets recovered first.

Step 3: Perform a Risk Assessment

Identify the threats that could cause those impacts, assess likelihood, and record your treatment decisions in the Risk Treatment Plan and the SoA. The risk assessment and the BIA together justify where you spend on resilience.

Step 4: Define Recovery Objectives (RTO and RPO)

Set an RTO and RPO for every critical system, derived from the BIA. RTO is the maximum time to restore a service. RPO is the maximum data loss you can absorb, measured in time. Both must fit inside the MTPD.

Insider Note: The most common RTO mistake is setting it based on what your technology can deliver, then calling that the target. Auditors and regulators expect the opposite: business tolerance sets the number, and the architecture is built to meet it. The NIST guidance in SP 800-34 is explicit that RTO must sit below the maximum tolerable downtime, with a safety margin. A stale or wishful RTO is worse than none, because it creates false confidence.

Step 5: Develop the Business Continuity Plan Document

Write the plan: scope, roles, scenarios, recovery procedures, a Disaster Recovery Plan (DRP) for ICT, communication protocols, and the testing schedule. Keep procedures specific enough to follow at 2 a.m. with half the team unreachable.

Step 6: Train Personnel and Assign Responsibilities

Brief the recovery team on their roles and give general staff awareness of the temporary procedures that apply during a disruption. Training records are audit evidence, so keep them.

Step 7: Test, Review, and Update the Plan

Run a tabletop exercise or a live failover test, document the results, log every gap in a corrective action tracker, and feed the fixes back into the plan. Then schedule the next test. A test that produces no findings usually means the test was too easy.

ISO 27001 Business Continuity Plan Template (What to Include)

A workable plan template covers, at minimum: scope and objectives; a register of critical processes and their ICT dependencies; the BIA results with MTPD, RTO, and RPO per system; named roles and deputies; disruption scenarios and recovery strategies; the DRP and backup arrangements; the communication plan; and the test schedule with a log of past exercises and their outcomes. The NIST contingency planning guide and ISO/TS 22317 both offer BIA templates worth borrowing from if you are starting cold rather than reinventing the structure.

We’ve created an editable template for your use, click the link below to view it.

How to Evaluate Information Security Continuity

Evaluation is not a one-off. ISO 27001 expects you to verify, through testing and review, that information security controls and ICT recovery still work as intended. That means checking after each test that recovery met the documented RTO and RPO, that security controls such as logging, encryption, and multi-factor authentication stayed active during failover, and that the lessons from the last exercise were actually implemented. Internal audit and management review are the formal mechanisms that close this loop and give the auditor a paper trail to follow.

 

Common Mistakes to Avoid When Building Your Plan

The recurring failures are predictable. Writing the plan in IT isolation with no buy-in from the rest of the business. Setting RTO and RPO from technology capability rather than business need. Leaving ownership as a job title instead of a person. Never testing, or testing once and filing the report. Disabling security controls during recovery to move faster, which directly breaches A.5.29. And treating A.5.30 as a relabel of the old Annex A 17, when it is a genuinely new requirement with its own evidence demands.

Worth Knowing: Don't Sacrifice Security During Recovery

Worth Knowing: Auditors treat the suppression of a security control during recovery as a non-conformity, not a pragmatic shortcut. If you turn off MFA or firewall inspection to speed a restore, that decision has to be a documented, risk-assessed waiver, not an undocumented field call. A failover that quietly drops your logging is a finding waiting to happen.

What Auditors Look for in an ISO 27001 Business Continuity Plan

A certification auditor wants living proof, not shelf-ware. Expect them to ask for a BIA reviewed and signed off by management within the last 12 months, a register of critical ICT assets with RTO and RPO attached, the DRP and its technical recovery procedures, evidence of backup integrity, and a schedule of tests with results from previous exercises. They will look for after-action reports and a tracked corrective action plan showing that failures from the last test were remediated. They will check training records for the recovery team. And they will probe whether a named responder can actually describe their role. The theme throughout: evidence that continuity is operationally real, not a policy PDF filed away after last year’s audit.

If you want help building or auditing this against ISO 27001:2022, Axipro’s ISO 27001 implementation support covers the BIA, control mapping, and evidence preparation end to end.

Let Axipro help you build a business continuity plan that's practical, compliant, and audit-ready.

Strengthen Your Business Continuity Strategy

Conclusion

An ISO 27001 business continuity plan succeeds or fails on two things: whether your information security holds during a disruption, and whether your ICT can recover within the targets the business actually needs. A.5.29 and A.5.30 make both measurable and auditable. Build the plan from a real BIA, set recovery objectives from business tolerance, name owners, test the plan, and fix what breaks. Do that, and certification becomes the byproduct of genuine resilience rather than a paperwork exercise.

ISO 27001 BCP Frequently Asked Questions

Is a business continuity plan mandatory for ISO 27001 certification?

You cannot ignore continuity. ISO 27001:2022 includes A.5.29 and A.5.30 as Annex A controls, and unless you can justify their exclusion in the Statement of Applicability, you must implement them. In practice this means documented, tested continuity arrangements for information security and ICT, even if you do not pursue a full ISO 22301 BCMS.

ISO 27001 covers the information security aspects of continuity: keeping data confidential, intact, and available during disruption. ISO 22301 is a standalone Business Continuity Management System standard covering the whole organization, including people, facilities, and supply chain. An ISO 27001 certificate does not prove you have a complete BCMS; ISO 22301 does.

At planned intervals, which in practice means at least once a year and after any significant change, such as a major system migration, an acquisition, or a real incident that exposed a gap. The BIA should be reviewed on the same cadence so the recovery objectives stay accurate.

Senior management owns the objectives and approves the plan, but day-to-day responsibility is distributed across process owners, an ICT recovery team, and named individuals for each critical system and recovery step. The plan should name people and deputies, not departments.

The business continuity plan is the umbrella, covering how the organization keeps critical functions running during disruption. The Disaster Recovery Plan is a subset focused specifically on restoring IT and technology infrastructure. Under ISO 27001, the DRP supports A.5.30, while the broader continuity plan supports A.5.29 and ties the technical recovery to business priorities.

Axipro Author

Picture of Pedro Dias

Pedro Dias

Pedro has been writing online for over 10 years. With experience in all things programming, cyber security, and compliance, he is our editor-in-chief at Axipro.

Blog Highlights

Explore More Articles

A consultant-grade ISO 42001 gap analysis checklist has 38 Annex A controls, roughly 80 clause-level “shall” statements, and one question attached to every line: where is the evidence, and would a certification body accept it? That last question is what separates the checklists consultants use from the free self-assessment spreadsheets that rank for the same search. This article lays out the checklist itself: what a consultant checks before the engagement starts, the clause-by-clause and control-by-control checkpoints, how evidence gets sampled, how gaps get scored, what the deliverables look like, and what fails most often. Use it to run your own assessment, or to check whether the consultant you’re about to hire is doing the job properly. What Makes a Consultant-Grade ISO 42001 Gap Analysis Checklist Different​ Depth of Evidence Review vs. Self-Assessment Tools A self-assessment tool asks whether you have an AI policy. A consultant asks to see it, checks the approval date and version, reads clause 5.2 against it, and then asks three people in engineering whether they’ve read it. The checklist item is the same. The evidence standard is not. Consultants score every item on three levels: documented, implemented, and effective. A policy that exists but nobody follows scores as “ad hoc,” not “defined.” A control that runs but produces no record scores as unverifiable, which for audit purposes is the same as absent. Self-assessment tools collapse those three levels into a single yes/no, which is why companies that score 85% on a free tool routinely receive major nonconformities at Stage 2. Alignment with Certification Body Expectations Certification bodies auditing against ISO/IEC 42001:2023 now work under ISO/IEC 42006:2025, which sets competence, audit-time, and impartiality requirements for AIMS auditors and builds on ISO/IEC 17021-1. A consultant-grade checklist is written with 42006 in mind: it organizes findings by clause and control identifier, because that’s how the auditor works, and it records evidence locations, because that’s what the auditor will sample. The practical difference shows up in the report. A gap register that says “AI governance needs improvement” is useless in front of an auditor. One that says “A.5.2 not conformant: no documented impact assessment process; two of four in-scope systems have no assessment on file” maps directly to the audit plan. Risk-Weighted Scoring Methodology Self-assessments count gaps. Consultants weight them. A missing AI policy under clause 5.2 and an incomplete competence matrix under 7.2 are both gaps, but the first will block certification and the second will earn you a minor finding. A consultant-grade checklist carries two scores per line: a maturity rating (how far the control is from working) and a certification criticality (what happens at audit if it stays this way). Effort estimates live in the remediation plan, never in the gap score, because mixing them produces a roadmap that fixes easy things first rather than important ones. Insider Note: The fastest tell that a checklist is consultant-grade rather than a marketing download is whether it has a column for evidence location. Auditors don’t accept “yes” as evidence. If the checklist has nowhere to record where the proof lives, it wasn’t built by someone who has sat through a Stage 2. Pre-Engagement Preparation Consultants Complete Before the Gap Analysis Client AI Inventory and Use Case Cataloging Nothing in the checklist works without a complete AI inventory, and it’s the input clients get wrong most often. The inventory records every AI system in use: purpose, the role you play (developer, provider, deployer, or user), data consumed, outputs produced, whether a human sits between the output and the decision, and which third-party model or API it depends on. Consultants push hard on shadow AI here: SaaS tools that added AI features, agents running under employee credentials, and internal scripts calling model APIs. Every one of those is in scope until you document why it isn’t. Defining AIMS Scope Boundaries Clause 4.3 requires a scope statement naming which AI systems, business units, locations, and lifecycle stages the AIMS covers. Consultants draft this from the inventory, not before it. Scope discipline matters commercially too: certification bodies price audits by audit days, and audit days scale with scope. A narrow, well-justified first scope (the customer-facing AI product, say, rather than every internal tool) is usually the right call for a first certification. Stakeholder Interview Planning The checklist needs answers from people who don’t write policies. A typical interview plan covers the executive sponsor (clause 5), the AI or product lead (clauses 6 and 8), data engineering (A.7), procurement or vendor management (A.10), legal or privacy (A.5, A.8), and at least one front-line user of the AI system (A.9). Consultants interview the doers separately from the document owners, because the distance from what the procedure says to what actually happens is the finding. Document Request List (DRL) Consultants Send Clients The DRL goes out one to two weeks before fieldwork. A standard ISO 42001 DRL asks for the AI inventory; existing AI, security, and data policies; org chart with AI governance roles; any AI risk assessments or impact assessments; model documentation (model cards, system cards, or whatever exists); training-data provenance and data quality records; supplier contracts for third-party models; incident and change logs; training records; any ISO 27001 ISMS documentation; and the last internal audit and management review minutes if they exist. Missing items become findings rather than delays. Pro Tip: Return an Honest DRL Return the DRL with a column that says “does not exist” wherever that’s true. Consultants would rather know on day one than discover it in a workshop. An honest DRL shortens fieldwork by days and makes the maturity scores more accurate, which makes the remediation plan cheaper. Clause-by-Clause Checklist Consultants Use (ISO 42001 Clauses 4 to 10) ISO 42001 follows the Harmonized Structure shared with ISO 27001 and ISO 9001, so clauses 4 to 10 will look familiar to anyone who has run an ISMS. What’s different is the content each clause demands. Clause 4 – Context of the Organization Checkpoints Consultants check for a documented analysis of

Scigeniq, a UAE life sciences software vendor, completed SOC 2 Type 2 and ISO 27001 in one three-month engagement with Axipro and Vamu.

ISO/IEC 42001:2023 asks for three assessments, and most teams try to squeeze them into one spreadsheet: a gap analysis against clauses 4 to 10 and Annex A, an AI risk assessment under clause 6.1.2, and an AI system impact assessment under clause 6.1.4. Treat them as one exercise and the auditor pulls them apart for you at Stage 2. Treat them as three unrelated projects and you triple the workshops, the registers, and the remediation lists. What works is a single methodology with distinct outputs that share inputs, share a traceability matrix, and feed one remediation plan. This article lays out that methodology end to end: how gap analysis and risk assessment fit together under ISO 42001, how to prepare, the step-by-step process for each, how to merge the outputs into one risk treatment plan, the registers and templates you’ll need, and what a certification body expects to see when you’re done. Why Gap Analysis and Risk Assessment Must Work Together Under ISO 42001 A gap analysis measures distance from the standard. A risk assessment measures exposure from your AI systems. They answer different questions, and ISO 42001 makes them depend on each other in a way ISO 27001 only implies. Clause 6.1.3 requires you to compare the controls you select through risk treatment against Annex A, and to justify any Annex A control you leave out in the Statement of Applicability (SoA). So your Annex A gap analysis has no defensible baseline until the risk assessment tells you which controls you need. Run the gap analysis on its own, and you end up scoring yourself against all 38 controls, including ones your risk profile never called for. Run the risk assessment on its own, and you pick treatments with no idea what already exists to deliver them. The methodology below interleaves the two. A clause-level gap review sets the scope and evidence base, the risk and impact assessments decide which controls are required, and a control-level gap review then scores only what matters. How AI-specific risks shape the methodology Traditional information security risk works from confidentiality, integrity, and availability. AI risk adds categories that don’t map neatly onto any of those: model drift, bias in training data, outputs nobody can explain, automation bias in the humans doing the reviewing, and dependence on third-party foundation models whose behavior changes without warning. ISO/IEC 23894, the companion guidance on AI risk management, adapts the ISO 31000 cycle (establish context, identify, analyze, evaluate, treat) to these sources rather than inventing a new one. That’s why the methodology here keeps the familiar ISO 31000 shape and changes the inputs, not the process. Regulatory and business drivers for a formal methodology The commercial driver is procurement. Enterprise security questionnaires now ask whether you ran an AI impact assessment, whether a human reviews high-stakes outputs, and which third-party models touch customer data. A documented methodology answers those questions with evidence instead of assurances. The regulatory driver is the EU AI Act, and its timeline moved in July. Regulation (EU) 2026/1744, the Digital Omnibus on AI, entered into force on July 27, 2026, and pushed the high-risk obligations for standalone Annex III systems from August 2, 2026 to December 2, 2027. Annex I embedded systems moved to August 2, 2028. The Article 50 transparency obligations still kicked in on August 2, 2026, as originally planned. Article 9 of the AI Act text on EUR-Lex requires a risk management system for high-risk AI that runs continuously across the system lifecycle, which is exactly what an ISO 42001 methodology gives you. Sixteen extra months is time to build it properly, not a reason to shelve it. Core Principles of an ISO 42001 Gap Analysis and Risk Assessment Methodology Four principles keep the methodology defensible in front of a certification body. Alignment with clauses 4 to 10 and Annex A. Every finding in the gap register cites a clause or an Annex A control identifier. Auditors work clause by clause, so a gap register organized any other way forces a translation step during the audit that nobody enjoys. Integration with the AI system impact assessment. Clause 6.1.4 is what separates ISO 42001 from every other Annex SL standard. The impact assessment looks outward at individuals, groups, and society. The risk assessment under 6.1.2 looks inward at the organization. The standard wants both as separate documented outputs, and the consequences you find in the impact assessment have to feed back into the risk assessment. So the methodology runs the impact assessment as a scheduled input to risk analysis, not something bolted on the week before the audit. Risk-based thinking applied to the AIMS itself. Clause 6.1.1 also asks you to consider risks and opportunities to the management system: someone leaving the AI governance function, a vendor retiring a model, a regulator changing its classification rules. These go in the same register with a different category tag. Defined inputs, outputs, and success criteria. Inputs are the AI system inventory, the scope statement, existing policies, data flow diagrams, model documentation, and your risk criteria. Outputs are the gap register, the AI risk register, impact assessment reports, the SoA, and the risk treatment plan. Success means each output traces to the others, every gap and risk has an owner, and an internal auditor could repeat the process and land somewhere similar. Insider Note: Impact assessments are where certification auditors probe hardest, because they’re the most distinctive part of ISO 42001 compared with ISO 27001. A recycled security risk register with “AI” pasted into the risk titles gets picked apart in Stage 2. Build the impact assessment methodology properly the first time. It’s far cheaper than rebuilding it under a nonconformity deadline. Preparing for the Gap Analysis and Risk Assessment Preparation is where most of the calendar time goes, and where most later problems start. Define scope, boundaries, and the AI system inventory. Scope under clause 4.3 has to name which AI systems, business units, and lifecycle stages the AIMS covers. You can’t write