The Fundamentals
What Is SOC 2 — And Why Do Your Customers Require It?
SOC 2 (System and Organization Controls 2) is an auditing standard developed by the AICPA. It evaluates whether a service organization’s controls adequately protect the security, availability, processing integrity, confidentiality, and privacy of customer data.
For SaaS companies and cloud service providers, SOC 2 has become the baseline expectation for enterprise sales. A signed SOC 2 report from a licensed CPA firm tells your customers: an independent expert examined your controls and determined they meet the standard. It replaces the security questionnaire. It closes the deal.
Type I vs. Type II — What’s the Difference?
| SOC 2 Type I | SOC 2 Type II | |
|---|---|---|
| What it covers | Controls as designed at a point in time | Controls as operated over an observation period |
| Observation period | None — single date | Typically 6–12 months |
| Typical timeline | 6–10 weeks from kickoff | 10–18 months total |
| What customers accept it for | Initial vendor qualification; early-stage deals | Enterprise procurement; security reviews |
The Five Trust Services Categories
SOC 2 audits are structured around one or more Trust Services Categories. Security is required in every engagement. All others are optional and should be included only when relevant to your service commitments.
- Security (Required) — Logical access, change management, risk assessment, incident response, and system operations.
- Availability — Uptime commitments, monitoring, and incident management related to service availability.
- Processing Integrity — Applies when your service processes data that must be complete, valid, accurate, and timely.
- Confidentiality — Protection of information designated as confidential, including customer data and intellectual property.
- Privacy — Collection, use, retention, disclosure, and disposal of personal information.
Who Needs a SOC 2 Audit?
You likely need a SOC 2 report if:
- Enterprise customers are asking for one in procurement or security reviews
- You store, process, or transmit sensitive customer data in a cloud environment
- You’re a SaaS company entering the mid-market or enterprise segment
- Your investors or board require third-party security assurance