ISO 22301 vs ISO 27001
ISO 22301 and ISO 27001 look alike in structure, but they have a different primary focus. ISO 22301 concentrates on business continuity. ISO 27001 concentrates on information security, and through Annex A it also requires continuity measures. You will find the source on the official ISO 27001 page .
In short: 22301 helps you keep running during disruptions, while 27001 helps you protect information and systems better.
ISO 22301 vs ISO 27001 in brief
| Question | Answer |
|---|---|
| Which standard covers outages and recovery? | ISO 22301 |
| Which standard covers information security? | ISO 27001 |
| Can you combine them? | Yes, and often a sensible thing to do |
| Which one first? | Depends on your biggest business risk |
Comparison: ISO 22301 vs ISO 27001
| Topic | ISO 22301 | ISO 27001 |
|---|---|---|
| Main goal | Continuity of critical processes | Protection of information (CIA) |
| Core method | BIA, RTO/RPO, recovery strategy | Risk analysis, controls, ISMS |
| Primary risk | Operational outage | Data leaks, cyber incidents, unauthorised access |
| Evidence in audit | Exercises, recovery results, continuity plans | Risk treatment, security controls, monitoring |
| Typical owner | COO/operations/risk | CISO/IT/security/compliance |
Overlap and difference in practice
You can read about the concept behind ISO 22301 on what business continuity is. The management system around it is described in what a BCMS is.
Both standards share the management system structure, so you can combine governance efficiently. Even so, the content remains clearly different:
- ISO 22301 revolves around availability and recovery of critical processes;
- ISO 27001 revolves around confidentiality, integrity and availability of information;
- you test 22301 with continuity exercises, and 27001 with security controls and risk treatment.
For many organisations, it is therefore not an either-or choice, but a phased combination.
Which one to choose when?
ISO 22301 first
Choose ISO 22301 first if:
- service outages are your biggest business risk;
- customers are strict about recovery and continuity;
- your dependency on the supply chain is high.
Costs and lead time: ISO 22301 vs ISO 27001
| Topic | ISO 22301 | ISO 27001 |
|---|---|---|
| Implementation period | Often 4-12 months | Often 4-10 months |
| Largest area of effort | BIA, testing and recovery evidence | Security controls and risk treatment |
| Audit focus | Operation under disruption | Effectiveness of security controls |
| Recurring maintenance | Exercises and continuity updates | Control monitoring and periodic reviews |
Common choice mistakes: ISO 22301 vs ISO 27001
- Choosing ISO 27001 while outage risk is your biggest revenue risk.
- Starting ISO 22301 without sufficient IT and security foundations.
- Starting both standards at the same time without a capacity plan and clear ownership.
- Not using the governance overlap, which leads to duplicate work.
Practical approach to combining the standards
- Start with shared governance and scope.
- Use one schedule for internal audits and management reviews.
- Keep standard-specific workstreams separate (BIA/RTO vs. security controls).
- Link incident management, lessons learned and CAPA.