A Practical Expert Guide to Understanding Scope, Standards, and Intended Use
As organizations expand their reliance on outsourced technology and business services, stakeholders increasingly demand assurance over the controls that safeguard financial reporting, data security, and operational integrity. Two of the most widely used assurance frameworks, SOC 1 and SOC 2, serve this purpose, yet they differ significantly in scope, criteria, and audience. Understanding these differences is essential for selecting the right report and evaluating a service provider’s risk posture.
While SOC 1 and SOC 2 engagements may appear similar on the surface and often test overlapping controls, they are issued under distinct AICPA attest standards, and more importantly, they answer entirely different questions for their readers.
SOC 1 Reports: Financial Statement Impact and Control Objectives
A SOC 1 report is performed under SSAE 18, AT-C Section 320. The terminology can be confusing; organizations sometimes refer to them as “SSAE 18 reports,” but the correct name is SOC 1. These reports serve one primary purpose:
To ensure controls that could affect a user entity’s internal control over financial reporting (ICFR).
SOC 1 examinations focus on the service organization’s processes, both business and IT, that could influence financial data. The organization, with guidance from its auditor, defines control objectives aligned to the services provided. These objectives guide the audit and determine what controls will be tested.
Typical SOC 1 areas include:
- Transaction processing accuracy and completeness
- Data input, authorization, and reconciliation practices
- Logical and physical access relevant to financial systems
- Change management affecting financially significant applications
SOC 1 is the right report when the service provided has a direct or indirect financial reporting impact on clients.
SOC 2 Reports: Trust Services Criteria and System Reliability
A SOC 2 report is issued under SSAE 18 AT-C 105 and SSAE 21 AT-C 205, focusing on controls that support the AICPA’s Trust Services Criteria (TSC):
- Security (mandatory)
- Availability
- Processing Integrity
- Confidentiality
- Privacy
Rather than evaluating financial relevance, SOC 2 examines whether the organization’s systems and operations are designed and functioning to protect data and ensure reliable service delivery. The scope is broader than financial controls and deeply aligned with modern cybersecurity and risk management expectations.
SOC 2 is often required for:
- SaaS providers
- Cloud hosting platforms
- Data processors and infrastructure services
- Managed IT, security, and support organizations
The emphasis is on system reliability, not financial reporting.
SOC 1 vs SOC 2: The Fundamental Difference
Although both reports assess internal controls, the governing principles differ:
SOC 2
Controls are tested against the Trust Services Criteria, a standard set of requirements related to cybersecurity, data protection, system availability, and privacy.
SOC 1
Controls are tested against control objectives defined by the service organization and auditor, specifically those relevant to financial reporting.
This distinction drives the entire audit approach, the evidence collected, and how report readers interpret results.
Why the Difference Matters for Risk and Compliance
Choosing the wrong report can leave stakeholders with gaps in assurance:
- A SOC 1 may not address cybersecurity expectations.
- A SOC 2 may not provide the assurance needed by external auditors evaluating financial reporting.
Similarly, when evaluating service providers, organizations must align the report type with their risk exposure:
- If the service impacts financial statements, SOC 1 is the appropriate examination.
- If the service stores, processes, or secures customer or operational data, SOC 2 provides the necessary visibility.
The emergence of SOC for Supply Chain further extends this assurance model, providing transparency across upstream manufacturing, logistics, and production environments an increasingly critical layer of modern operational risk management.
