ISO 27001 + SOC 2 Integration
Many organizations pursue both ISO 27001 and SOC 2. Learn how to integrate efficiently.
Understanding SOC 2
SOC 2 is an AICPA framework for service organizations handling customer data.
Trust Services Criteria: Security, Availability, Processing Integrity, Confidentiality, Privacy
ISO 27001 vs SOC 2
| Aspect | ISO 27001 | SOC 2 |
|---|---|---|
| Type | International standard | US-based framework |
| Certification | Certificate issued | Audit report issued |
| Scope | Organization-wide ISMS | Specific systems/services |
| Audience | Global, especially EU | US market, especially SaaS |
| Frequency | 3-year cycle | Annual Type II |
Overlap: 70-80% of controls overlap
Integration Strategies
Strategy 1: ISO First, SOC 2 Second (Recommended)
- ISO provides strong ISMS foundation
- SOC 2 builds on solid base
- Easier to maintain both
Strategy 2: Parallel Implementation
- Faster time to both
- Single design effort
- Higher resource demand
Strategy 3: SOC 2 First, ISO Second
- Meets immediate US needs
- May need to retrofit ISMS
Unified Control Framework
Create single control framework addressing both.
Example: Access Control
- ISO 27001: Controls 5.15-5.18
- SOC 2: Criteria CC6.1-6.3
- Unified Policy: Single access control policy referencing both
Success Formula
- Unified control framework
- Shared evidence repository
- Integrated tools
- Coordinated audits
- Single compliance team
Result: 1.5x work for 2x value
Next Lesson: Multi-site certification strategies.