Organizations increasingly need to demonstrate their commitment to security, availability, and data protection not only to auditors and enterprise clients but also to the general public. While SOC 2 reports deliver detailed, restricted-use assessments of an organization’s controls, many businesses need a way to communicate trust more broadly without disclosing sensitive audit details.
SOC 3 addresses this need. A SOC 3 report is a publicly distributable summary report that confirms whether an organization has met the Trust Services Criteria established by the American Institute of Certified Public Accountants (AICPA). It provides assurance without revealing the granular control descriptions, test procedures, and results contained in a SOC 2 report, making it ideal for marketing, websites, and general stakeholder communication.
What Is SOC 3?
SOC 3 is a general-use attestation report based on the same Trust Services Criteria as SOC 2, but designed for unrestricted distribution to any interested party. The Trust Services Criteria cover five categories:
- Security (common criteria, required in every engagement)
- Availability
- Processing Integrity
- Confidentiality
- Privacy
A SOC 3 report is produced by an independent CPA firm following the same rigorous examination as a SOC 2 Type II audit. The critical distinction is in the audience and level of detail. SOC 2 reports are restricted-use documents shared under NDA with specific parties, while SOC 3 reports omit detailed control descriptions and testing results, presenting only the auditor’s opinion on whether the organization met the applicable criteria.
This makes SOC 3 a powerful trust signal for organizations that serve broad customer bases, particularly SaaS providers, cloud platforms, and technology companies that want to publicly demonstrate their security posture.
How SOC 3 Works?
Audit and Examination
SOC 3 reports are generated from the same audit engagement as a SOC 2 Type II report. An independent CPA firm evaluates the organization’s controls over a defined review period, typically six to twelve months, assessing whether controls are suitably designed and operating effectively.
Report Generation
Upon completing the examination, the auditor produces a SOC 3 report containing:
- An independent auditor’s opinion stating whether the organization met the Trust Services Criteria
- A description of the scope and boundaries of the system examined
- Confirmation of the review period
- Management’s assertion of compliance
Unlike SOC 2, the SOC 3 report does not include the detailed system description, specific control activities, or the auditor’s test procedures and results. This omission is intentional, enabling unrestricted public distribution without exposing sensitive operational details.
Public Distribution
Organizations can freely share SOC 3 reports on websites, in sales materials, and with prospective customers. The AICPA previously offered a SOC 3 seal for website display, reinforcing public trust. This positions SOC 3 as both a compliance artifact and a market-facing trust indicator.
Key Characteristics of SOC 3
- Public accessibility: SOC 3 is designed for unrestricted distribution, unlike the confidential SOC 2 report.
- Same audit rigor: The underlying examination is identical to SOC 2 Type II, ensuring the same depth of assessment and independent validation.
- Simplified presentation: By excluding detailed control descriptions and test results, SOC 3 communicates assurance in a format accessible to non-technical audiences.
- Trust and transparency: SOC 3 enables organizations to publicly demonstrate their commitment to security, availability, and privacy without compromising sensitive audit information.
- Complementary to SOC 2: Most organizations produce SOC 3 alongside SOC 2, using SOC 2 for enterprise clients and SOC 3 for broader stakeholder communication.
Challenges and Limitations of SOC 3
- Limited detail: SOC 3 reports lack the granular information that enterprise buyers, regulators, and security teams typically require for vendor risk assessments.
- Not a substitute for SOC 2: Organizations undergoing rigorous vendor due diligence will still need to provide SOC 2 reports. SOC 3 alone rarely satisfies enterprise procurement requirements.
- Lower market awareness: Compared to SOC 2 and ISO 27001, SOC 3 has lower recognition among security professionals and procurement teams, limiting its standalone value.
- No competitive differentiation on controls: Because SOC 3 does not describe specific controls, it cannot demonstrate the maturity or sophistication of an organization’s security program.
The Future of SOC 3
As digital trust becomes a competitive differentiator, organizations will increasingly leverage SOC 3 alongside SOC 2 and frameworks like ISO 27001 to build layered trust strategies. Growing regulatory expectations around transparency, combined with expanding cloud adoption, will sustain demand for publicly shareable assurance reports.
Conclusion
SOC 3 provides a publicly distributable attestation that an organization meets the AICPA’s Trust Services Criteria, offering broad stakeholders confidence in an organization’s security posture without exposing sensitive audit details. While it does not replace the detailed assurance of SOC 2, SOC 3 serves a distinct and valuable role, enabling organizations to communicate trust transparently across customers, partners, and the public.
