SOC 2 Compliance
SOC 2 is an AICPA framework that audits how service organizations protect customer data against five Trust Services Criteria. Building its controls into a system keeps migrated services continuously auditable rather than audit-driven.
Best Practice: SOC 2 Compliance
SOC 2 (Service Organization Control 2) is an auditing framework from the American Institute of Certified Public Accountants (AICPA) that evaluates how well a service organization protects customer data. It is based on the Trust Services Criteria: Security (always required), and optionally Availability, Processing Integrity, Confidentiality, and Privacy. A Type I report assesses control design at a point in time; a Type II report assesses operating effectiveness over a period, typically 3 to 12 months. SOC 2 is the de facto trust signal for B2B SaaS. For modernization, treating SOC 2 controls as design requirements keeps a migrated system continuously auditable rather than scrambling before each audit.
Step-by-Step Implementation Guidance
- Choose the Trust Services Criteria in scope based on what you promise customers.
- Define your system boundary: the services, infrastructure, and data covered.
- Implement controls for access, change management, monitoring, encryption, and incident response.
- Document policies and procedures and assign owners.
- Collect evidence continuously (logs, tickets, approvals) rather than at audit time.
- Run a readiness assessment or gap analysis before the formal audit.
- Engage a licensed CPA firm for the Type I, then Type II, examination.
Common Mistakes Teams Make When Ignoring This Practice
- Treating SOC 2 as a one-time project instead of continuous operation.
- Scrambling to recreate evidence right before the audit window.
- Scoping the system boundary vaguely, leaving gaps auditors flag.
- Writing policies no one follows in practice.
- Ignoring change management and access reviews until findings appear.
Tools and Techniques That Support This Practice
- Compliance automation platforms such as Vanta, Drata, and Secureframe.
- Centralized logging, SIEM, and access-review tooling.
- Infrastructure as code with policy as code for consistent controls.
- Identity and access management with least-privilege and MFA.
How This Practice Applies to Different Migration Types
- Cloud Migration: Carry SOC 2 controls into the new environment, including logging, encryption, and access reviews.
- Database Migration: Preserve encryption, access controls, and audit trails for data at rest and in transit.
- SaaS Migration: Verify new SaaS vendors hold their own SOC 2 reports before relying on them.
- Codebase Migration: Keep change-management and code-review controls intact through the rewrite.
Checklist
- In-scope Trust Services Criteria are chosen.
- The system boundary is clearly defined.
- Controls cover access, change, monitoring, and encryption.
- Policies are documented and owned.
- Evidence is collected continuously.
- A readiness gap analysis is completed.
- A licensed CPA firm performs the examination.