ISO 27001 vs SOC 2 — What Is the Difference?
Compare ISO 27001 and SOC 2, understand overlaps and decide which framework to prioritise for your organisation.
Two Standards, Different Origins
ISO 27001 is an international standard published by the International Organization for Standardization. SOC 2 is a US-originated audit framework developed by the AICPA. Both address information security but differ in structure, geography, and scope.
Key Differences at a Glance
| Dimension | ISO 27001 | SOC 2 |
|---|---|---|
| Origin | International (ISO/IEC) | US (AICPA) |
| Recognition | Global, especially Europe and Asia | Primarily US and Canada |
| Output | Certification (pass/fail) | Audit report (Type I / Type II) |
| Scope | All information assets | Services delivered to customers |
| Controls | Annex A — 93 controls | Trust Service Criteria (flexible) |
| Audit cycle | 3-year certification, annual surveillance | Annual audit |
Where They Overlap
Both frameworks require access controls, encryption, incident response, vulnerability management, and vendor risk management. Organisations pursuing both can reuse approximately 60 to 70 percent of their control evidence.
Which Should You Prioritise?
- Selling to US enterprise customers: SOC 2 Type II first
- Selling to European enterprise or government: ISO 27001 first
- Global customer base: ISO 27001 first (broader recognition), then SOC 2
RINS.ai for ISO 27001 and SOC 2
RINS.ai scans your vendor agreements and policies against both ISO 27001 Annex A and SOC 2 Trust Service Criteria simultaneously, surfacing gaps that affect one or both frameworks in a single report.