The ROI of Compliance Attestation: When Third-Party Assurance Creates Business Value

“Trust Us” Is Not Evidence

President Ronald Reagan famously quipped “Trust, but verify” during treaty negotiations with the Soviet Union. That advice is as applicable in compliance and risk management as it is in international diplomacy.

Consider the hypothetical example of a growing software or services company that is close to signing an enterprise customer. When the security questionnaire arrives followed by a request for a SOC 2 report the company lacks, the value of independent compliance attestation becomes evident as the deal stalls. And while the team scrambles to build controls and find an auditor, every week that passes before attestation is obtained increases the chances that a competitor will snipe the deal.

The consequences of skipping third party attestation go beyond delays and frustrations. Organizations that handle payment cards, federal contract information, or public company financial reporting can face lost contracts, failed certifications, regulatory scrutiny, and contractual penalties. Even where the law doesn’t strictly require independent assurance, buyers often do. Self-reported compliance rarely survives serious vendor scrutiny.

What Is Compliance Attestation?

Compliance attestation is a formal engagement in which a qualified, independent party examines an organization’s controls or assertions and issues an opinion on them. By contrast, an audit is designed to uncover risks and gaps you may not know about.

Third-party attestation evaluates how accurate your information or controls are against a stated purpose, standard, or system. Assurance builds confidence among the people relying on that information, such as customers, investors, and business partners. A CPA firm or accredited assessor has no stake in the outcome, which is why its opinion carries weight an internal review can’t.

There are four key benefits to compliance attestation:

• Stronger customer trust. An independent report tells prospects that a qualified assessor tested your controls, not just that you documented them. For service organizations holding customer data, this is often the single most persuasive trust signal available.
• Less sales friction. One current attestation report can answer hundreds of repetitive questionnaire items. Procurement and security teams are often able to approve a vendor faster when they can review a report instead of building their own assessment. IS Partners’ SOC 2 services are built around this goal: proving to customers and vendors that you handle their data securely.
• Support for vendor risk management. Your customers have their own third-party risk obligations. Attestation reports give them documented assurance about your control environment, while the same discipline helps you evaluate your own vendors. This is the focus of IS Partners’ vendor risk assessments.
• Long-term returns beyond the checkbox. Preparing for attestation forces clear ownership of controls, documented policies, and regular evidence collection. Findings can help give leadership an unbiased view of gaps before an incident or regulator exposes them. Reports can often be reused across customers and renewal cycles, so the cost of a single assessment is spread across many revenue conversations. Credible information can also lower transaction costs and improve resource allocation.

Which Regulations and Standards Require Attestation?

No single law requires attestation for everyone. Requirements depend on your industry, the data you handle, and who your customers are. These are some common frameworks most organizations should evaluate.

SOX Section 404: Auditor Attestation of Internal Controls

Public companies must assess internal control over financial reporting, and larger filers must also obtain an independent auditor’s attestation on those controls. See the statute at 15 U.S.C. § 7262.

Independent testing can help strengthen investor confidence and reduce the risk of reporting failures.

PCI DSS: Assessor Validation for Payment Data

The PCI Security Standards Council defines when merchants and service providers must have a Qualified Security Assessor (QSA) validate compliance through a Report on Compliance (RoC). Requirements vary by transaction volume and role, and card brands and acquirers enforce them.

Validated compliance helps ensure companies are able to process payments while also reducing breach-related exposure.

CMMC: Third-Party Assessment for Defense Contractors

While the requirement for third-party attestation for compliance with the Department of War’s Cybersecurity Maturity Model Certification (CMMC) program was suspended, provisions under 32 CFR Part 170 requiring certain contractors handling controlled unclassified information (CUI) to undergo assessment by an authorized third-party assessor are under review and are likely to be adopted eventually. That means CMMC certification is still a condition of winning and keeping covered Department of Defense work.

New York Department of Financial Services (NYDFS) Part 500: Annual Certification

NYDFS Section 500.17 requires covered entities to submit an annual certification of compliance or acknowledgment of noncompliance, signed by senior leadership. The regulation doesn’t mandate an outside auditor. However, it does require that the filing rest on sufficient data and documentation. Independent testing gives executives a defensible basis for signing.

DORA: Third-Party Risk in EU Financial Services

The Digital Operational Resilience Act (DORA) requires financial entities to manage information and communications technology (ICT) third-party risk and hold providers accountable. It does not prescribe one attestation report. However, independent assurance is a practical way for providers to show they meet customer expectations.

HIPAA and GDPR: Demonstrating Compliance

The HIPAA Security Rule does not require third-party certification, and the GDPR makes certification mechanisms voluntary. Even so, independent assessment (for example, HITRUST for healthcare) is how many organizations prove their safeguards to partners and regulators. IS Partners offers both HIPAA and HITRUST services.

Frameworks Customers Ask For, Even When the Law Doesn’t

Some of the most valuable attestations are contractual, not statutory:

• SOC 1 and SOC 2: These American Institute of Certified Public Accountants (AICPA)-based reports are issued by CPA firms. SOC 1 addresses controls relevant to customers’ financial reporting, and SOC 2 addresses security and related trust criteria. Learn more from the AICPA.
• ISO/IEC 27001: This internationally recognized information security management standard is certified by accredited bodies. See the standard and IS Partners’ ISO 27001 services for more information.
• NIST frameworks: NIST 800-53 underpins many federal requirements, and the NIST AI Risk Management Framework (RMF) is increasingly referenced for AI governance.

When Is Third-Party Attestation Required?

A practical test is to ask four questions:

1. Does a law or regulation name an independent assessor? SOX 404 and CMMC do. PCI DSS does for many merchants and service providers.
2. Does a contract require it? Customer agreements, card brand rules, and prime contractor pass-through clauses often do.
3. Do your customers rely on your controls? If you process their financial data, host their systems, or touch their regulated information, expect requests for SOC 1, SOC 2, or ISO 27001.
4. Can leadership defend its own assertions? Where executives certify compliance, as under NYDFS, independent testing can help reduce personal and corporate risk.

If you answer yes to any of these questions, plan to obtain third party attestation before the lack of such documentation becomes a roadblock.

Make Compliance Attestation Pay Off

Organizations that obtain independent compliance attestation see it as a business asset that demonstrates confidence in their controls and establishes greater trust with customers and partners. They choose frameworks that match what customers and regulators actually ask for, build controls once, and map them across multiple standards. The right firm can also help you tell the difference between an audit that finds gaps, an attestation that validates controls, and the assurance your stakeholders need.

IS Partners, LLC is a CPA firm that delivers independent auditing, attestation, and assurance services across SOC, ISO, PCI DSS, CMMC, HITRUST, and more. Whether you are facing a customer demand, a regulatory deadline, or a first-time assessment, our team can help you identify which frameworks apply and build a plan to get there.

Contact IS Partners or book a free consultation to get started.