ISO 22301 vs ISO 27001: How Business Continuity and Information Security Work Together

11th Sep, 2026

A cyberattack does not only create an information-security problem. It can stop critical applications, delay customer services, disrupt communication and affect the organization’s ability to operate. The same is true in reverse: a power failure, cloud outage, supplier disruption or other operational incident can create new information-security risks when normal controls and processes are suddenly unavailable.

This is why organizations often find themselves comparing ISO 22301 vs ISO 27001. Both standards address organizational resilience but they approach disruption from different angles.

ISO 27001 focuses on managing information-security risks and protecting the confidentiality, integrity and availability of information. ISO 22301 focuses on the organization’s ability to continue and recover critical activities when disruption occurs.

Understanding this difference is important when deciding whether your organization needs ISO 27001, ISO 22301 or both. This guide explains how the two standards differ, where they overlap, how they can be integrated and how to determine the right approach for your organization.

ISO 22301 and ISO 27001: An Overview

1. ISO 22301 – Business Continuity Management System

ISO 22301 is the international standard for a Business Continuity Management System (BCMS). The current published edition is ISO 22301:2019, with a 2024 amendment. A new edition is currently under development but it has not yet replaced the 2019 standard.

The central idea behind ISO 22301 is straightforward: an organization should know which activities are critical, understand what could interrupt them and have a structured way to continue or recover those activities within defined requirements.

This involves more than having a disaster recovery document sitting in a folder. A BCMS connects business impact analysis (BIA), continuity strategies, recovery arrangements, responsibilities, communication, exercises and continual improvement. For example, if a manufacturing company loses access to a critical production facility, its continuity planning should help determine which operations must be restored first, what resources are required and how long the organization can operate under degraded conditions.

In practice, ISO 22301 helps organizations prepare for disruption before it happens and evaluate whether their recovery arrangements actually work. Testing and exercising are therefore important because a plan that looks complete on paper may not work as expected during a real incident.

2. ISO 27001 – Information Security Management System

ISO/IEC 27001 is the international standard for an Information Security Management System (ISMS). The current published edition is ISO/IEC 27001:2022. It provides a structured approach for managing information-security risks across people, processes and technology.

Information security is not limited to protecting databases or preventing hacking. An organization needs to protect information wherever it exists and ensure that it remains appropriately available, accurate and accessible to authorized users.

This is commonly understood through the CIA triad:

• Confidentiality – information is accessible only to authorized people.
• Integrity – information remains accurate, complete and protected from unauthorized alteration.
• Availability – information and supporting systems are available when they are required.

ISO 27001 uses risk assessment and risk treatment to determine how information-security risks should be addressed. Depending on the organization, this can involve access controls, incident management, supplier security, backup arrangements, cloud security, vulnerability management and other controls relevant to the organization’s risk profile.

ISO 22301 vs ISO 27001: Key Differences

While both standards support organizational resilience, ISO 22301 and ISO 27001 address different areas of business risk. The distinction becomes clearer when their scope, planning approach and operational focus are compared.

Difference	ISO 22301	ISO 27001
Core focus	Continuity of critical business operations during disruption	Protection and secure management of organizational information
Primary concern	Business interruption and its impact on products, services and critical activities	Information-security threats that may affect confidentiality, integrity or availability
Planning foundation	Business Impact Analysis (BIA) and continuity requirements	Information-security risk assessment and risk treatment
Key planning outcome	Continuity strategies, response plans and recovery arrangements	Security controls and measures to reduce identified risks
Operational emphasis	Maintaining and restoring critical business activities	Preventing, detecting and responding to information-security incidents
Recovery perspective	Recover the business within defined continuity requirements	Recover information and systems while maintaining appropriate security
Scope of dependencies	People, facilities, technology, suppliers and other resources required for business continuity	People, technology, processes, suppliers and other factors affecting information security
End goal	Organizational continuity and resilience	Information-security assurance and risk reduction

In simple terms, ISO 22301 focuses on keeping the business running when disruption occurs, while ISO 27001 focuses on protecting information and managing information-security risks. The two standards overlap where technology, availability, incidents and recovery are involved but they are not interchangeable.

The Role of Business Continuity Within ISO 27001

One of the most common misconceptions in discussions about ISO 27001 and business continuity is that ISO 27001 provides a complete business continuity management system.

It does not.

ISO/IEC 27001:2022 does address important continuity-related aspects within its Annex A controls. Two particularly relevant controls are A.5.29 – Information security during disruption and A.5.30 – ICT readiness for business continuity.

A.5.29 focuses on maintaining information security at an appropriate level when the organization is operating under disruption. The concern is not simply whether the business can continue but whether information remains adequately protected while normal operations are affected.

A.5.30 addresses ICT readiness in relation to business continuity objectives and ICT continuity requirements. In practical terms, this means the technology supporting critical activities needs to be planned, maintained and tested so that it can support continuity and recovery requirements.

These controls create an important connection between information security, ICT recovery and business continuity. However, they do not turn an ISMS into a complete BCMS.

The scope remains different. ISO 27001 addresses business continuity from the information-security and ICT perspective, whereas ISO 22301 addresses continuity management across critical business activities.

Where ISO 22301 and ISO 27001 Intersect

The real value appears when organizations stop treating information security and business continuity as completely separate activities.

1. Risk Management Across Security and Continuity

Both standards require organizations to understand uncertainty and make informed decisions about risk.

However, their risk perspectives are not identical.

An information-security risk may involve compromised credentials, ransomware, unauthorized access or data manipulation. A continuity risk may involve the loss of a facility, critical supplier, workforce, technology platform or utility.

These risks can also trigger one another.

For example, a ransomware attack can become a business continuity event if critical systems are unavailable. A prolonged outage can create security risks if emergency workarounds bypass normal access controls.

A mature resilience approach therefore considers where these risk areas interact rather than managing them in isolation.

2. Incident Response and Business Disruption

Information-security incident response and business continuity response serve different purposes, but they need to connect.

The security team may focus on identifying the incident, containing the threat, protecting evidence and preventing further compromise. At the same time, business continuity teams may need to determine which critical services must continue, what alternatives are available and how customers or stakeholders will be affected.

If these activities operate independently, one team may restore a system that another team still considers unsafe.

Integration helps establish clear escalation paths and decision-making responsibilities.

3. Technology, Availability and Recovery

Technology is one of the strongest points of overlap between the two standards.

A critical application may need:

• Appropriate security controls
• Reliable backup and recovery arrangements
• Defined recovery priorities
• Tested restoration procedures
• Controlled access during recovery
• Protection against further compromise

ISO 27001 helps address the information-security risks around these technologies. ISO 22301 helps establish what the business requires from those technologies during disruption.

This connection becomes especially important for organizations that depend heavily on cloud platforms, ERP systems, customer portals, data centres or other technology-enabled services.

4. Third-Party and Supplier Dependencies

Organizations rarely operate entirely on their own.

Cloud providers, logistics partners, payment gateways, IT service providers and other suppliers can become critical dependencies.

ISO 27001 considers information-security risks associated with suppliers and services. ISO 22301 encourages organizations to understand how the failure of important external dependencies could affect critical business activities.

Together, these perspectives help organizations move beyond asking, “Is our supplier secure?” and also consider, “What happens to our business if this supplier becomes unavailable?”

Connecting BIA and Information-Security Risk Management

ISO 22301 and ISO 27001 can work together by linking business continuity priorities with information-security risks.

Consider a company that relies on a cloud-based customer database. ISO 27001 evaluates risks such as unauthorized access, ransomware and data corruption, while ISO 22301 examines how the database’s unavailability could affect critical activities such as customer support, order processing and service delivery.

The BIA establishes the business impact and recovery requirements, while the security risk assessment identifies the threats that could affect the system. Together, these findings help the organization determine appropriate backup, recovery and security measures.

For example, if the database must be restored within a defined timeframe, recovery arrangements need to support that requirement. If ransomware is a significant risk, backups must also be protected against compromise and verified for secure restoration.

Organizations can also coordinate shared management-system processes such as training, internal audits, management review and continual improvement, while retaining standard-specific requirements such as ISO 27001 controls and ISO 22301 continuity planning and exercises.

The result is a coordinated approach where information security supports business continuity, without treating the two standards as identical.

A Real-World Example: Managing a Ransomware Disruption

Consider a company whose production and customer-service systems are affected by a ransomware incident.

The incident begins with the information-security response. The organization needs to identify and contain the attack, restrict compromised accounts, protect evidence, assess affected systems and prevent further spread. These activities align strongly with the organization’s ISO 27001 framework.

But the business cannot simply wait for the security investigation to finish before thinking about operations.

If customer service order processing or production systems are unavailable, the organization needs to determine which critical activities must continue and how they can be supported. This is where the business continuity response becomes important.

The response may progress through several connected stages:

Incident occurs → Security response → Continuity activation → Controlled recovery → post-incident improvement

During recovery, the two perspectives must remain connected. Restoring systems too quickly could reintroduce the threat. Waiting too long could cause unacceptable business impact.

A coordinated approach helps the organization decide:

• Which services must be restored first?
• Which systems can remain isolated?
• How will users regain access safely?
• Which alternative processes can operate temporarily?
• How will customers and stakeholders be informed?
• How will the organization verify that restored systems are secure?

After the incident, lessons from both the security response and continuity exercise can feed into corrective actions, risk assessments, recovery strategies and future testing.

This is the practical value of ISO 22301 and ISO 27001 integration: security response and business recovery are treated as connected activities rather than separate emergency processes.

Choosing Between ISO 22301 and ISO 27001

There is no universal sequence for implementing ISO 22301 or ISO 27001. The right choice depends on your key business risks, customer expectations, regulatory requirements and operational dependencies.

Choose ISO 27001 First If Information Security Is the Priority

ISO 27001 may be the better starting point when:

• Your organization handles sensitive or commercially valuable information.
• Cybersecurity threats such as ransomware, phishing or unauthorized access are significant risks.
• Customers or business partners require evidence of information-security controls.
• You operate a SaaS, IT, software or technology-driven business.

In short: Prioritize ISO 27001 when protecting information and managing information-security risks is the immediate business priority.

Choose ISO 22301 First If Business Continuity Is the Priority

ISO 22301 may be more appropriate when:

• Disruption could cause significant operational or financial impact.
• You provide critical or time-sensitive products or services.
• Recovery time is an important contractual or business requirement.
• Your operations depend on multiple critical resources, suppliers or facilities.

In short: Prioritize ISO 22301 when maintaining and recovering critical business activities is the immediate priority.

When Organizations Should Consider Both Standards

Implementing both ISO 27001 and ISO 22301 can be valuable when information systems are critical to business operations and a security incident could quickly become a business disruption.

This is particularly relevant for SaaS providers, technology companies, financial services organizations and other businesses with significant digital dependencies.

For example, a SaaS provider can use ISO 27001 to manage information-security risks while using ISO 22301 to establish continuity priorities and recovery arrangements for critical services

4C Consulting: From Management Systems to Business Resilience

4C Consulting helps organizations implement ISO 27001 and ISO 22301 with a practical, business-focused approach. From gap assessment and implementation to training, internal audits, certification audit readiness and continual improvement, our consultants help build management systems that support operational resilience not just compliance.

For organizations implementing both standards, we help create an integrated approach that aligns information security, business continuity and organizational objectives.

Not sure whether ISO 27001, ISO 22301 or both are right for your organization? 4C Consulting can assess your requirements, identify gaps and help you develop a practical implementation roadmap.

Frequently Asked Questions

1. What is the main difference between ISO 22301 and ISO 27001?

ISO 22301 focuses on business continuity and the ability to maintain and recover critical business activities during disruption. ISO 27001 focuses on managing information-security risks and protecting the confidentiality, integrity and availability of information.

2. Does ISO 27001 cover business continuity?

ISO 27001 covers important information-security and ICT continuity aspects, including Annex A controls A.5.29 and A.5.30. However, it does not replace a complete ISO 22301 Business Continuity Management System.

3. Do I need ISO 22301 if I already have ISO 27001?

It depends on your business requirements. ISO 27001 may address information-security risks related to disruption but organizations that need a formal, organization-wide BCMS may benefit from ISO 22301 as well.

4. Can ISO 22301 and ISO 27001 be implemented together?

Yes. The standards can be integrated through shared governance, training, internal audits, management review and continual improvement. However, standard-specific requirements such as ISO 27001’s information-security risk treatment and ISO 22301’s BIA and continuity activities still need to be addressed.

5. Which should an organization implement first?

There is no universal sequence. The decision should be based on the organization’s most significant risks, customer requirements, regulatory obligations and operational dependencies. Some organizations may prioritize ISO 27001, while others may benefit from starting with ISO 22301 or implementing both through an integrated roadmap.

6. What is the difference between BIA and information-security risk assessment?

A BIA examines how disruption to activities, processes or resources could affect the business and helps establish recovery priorities. An information-security risk assessment examines threats and vulnerabilities that could affect the security of information and determines how those risks should be treated.

7. Can ISO 27001 replace ISO 22301?

No. ISO 27001 addresses information-security management and includes specific continuity-related controls but it does not provide the full scope of an ISO 22301 BCMS.

8. Can an organization be certified to both standards?

Yes. An organization can implement and obtain certification to both ISO 22301 and ISO 27001. Because the standards share a management-system structure, some processes can be integrated while the organization maintains the specific requirements of each standard.