Why do organisations handling PHI usually need both SOC 2 and HIPAA rather than one or the other?

SOC 2 answers customer assurance questions about whether controls are designed and operating effectively. HIPAA answers whether an organisation is legally allowed to handle PHI and whether it has the required safeguards and BAAs. Healthcare customers usually want both because one supports trust in the control environment and the other satisfies regulatory obligations.

Why This Matters for Security Teams

For healthcare and health-tech organisations, SOC 2 and hipaa answer different questions, and treating them as substitutes creates gaps. SOC 2 gives customers assurance that controls exist and are operating effectively; HIPAA establishes the legal and security baseline for handling PHI, including safeguards and business associate obligations. Security leaders often need both because enterprise buyers, regulators, and auditors assess risk through different lenses.

This distinction matters most when PHI moves across vendors, cloud services, and internal systems. A SOC 2 report may support procurement, but it does not replace HIPAA-required policies, breach handling, or HHS HIPAA Security Rule guidance. Likewise, HIPAA compliance alone may satisfy legal obligations while leaving customers uncertain about control maturity. NHI exposure makes the issue sharper: service accounts and API keys often handle PHI behind the scenes, and NHI Mgmt Group research shows how weak visibility and rotation practices can undermine both assurance and compliance.

In practice, many security teams encounter this only after a customer security review or contractual negotiation has already delayed a PHI integration.

How It Works in Practice

SOC 2 and HIPAA usually operate as complementary layers. SOC 2 is an independent attestation against trust services criteria, so it helps demonstrate that security controls are designed, implemented, and monitored. HIPAA is a regulatory framework that applies when an organisation creates, receives, maintains, or transmits PHI and must protect it through administrative, physical, and technical safeguards. For most PHI-handling providers, the operational question is not whether one replaces the other, but how evidence maps across both.

Practitioners typically align controls once and reuse the evidence in multiple ways:

• Access control, logging, encryption, and incident response evidence can support both SOC 2 and HIPAA.
• Policies and risk assessments must be written with HIPAA requirements in mind, then tested for operational effectiveness under SOC 2.
• Business Associate Agreements are a HIPAA requirement, while customer trust packages often ask for SOC 2 reports to validate the control environment.
• Third-party dependency reviews matter because PHI may flow through cloud services, support tools, and automation accounts.

That last point is where NHI governance becomes critical. The Ultimate Guide to Non-Human Identities highlights that NHIs outnumber human identities at scale, which means machine credentials often become the real control point for PHI access. Security teams should also use external guidance such as the ENISA Threat Landscape to understand how credential compromise and lateral movement affect regulated data paths.

These controls tend to break down when PHI is processed by unmanaged service accounts, embedded API keys, or vendor integrations that lack clear ownership and revocation paths.

Common Variations and Edge Cases

Tighter compliance mapping often increases documentation and evidence overhead, requiring organisations to balance customer assurance against operational speed. That tradeoff becomes visible in smaller healthcare vendors, startups, and platform teams that assume a SOC 2 report alone will satisfy procurement, only to discover that HIPAA obligations still govern PHI handling.

There is no universal standard for when a SOC 2 report is “enough” for a customer, because many health systems and payers expect both a control attestation and a clear HIPAA posture. Best practice is evolving, but current guidance suggests treating SOC 2 as proof of control maturity and HIPAA as proof of lawful, safeguarded PHI handling. If a service provider touches PHI as a business associate, the legal requirements do not disappear just because a SOC 2 audit was completed.

Edge cases also arise when PHI is minimized, tokenized, or routed through a downstream processor. In those environments, teams still need to prove who can access the data, how secrets are issued, and how access is revoked. This is where a clean NHI inventory and rotation discipline matter, especially when sensitive workflows depend on machine identities and not just employee access. The Schneider Electric credentials breach illustrates how credential exposure can affect trust and regulatory exposure at the same time.

Related resources from NHI Mgmt Group

• How should security teams govern non-human identities for SOC 2 compliance?
• When do NHI access reviews create more value than a one-time cleanup?
• How do organisations operationalise NHI ownership at scale?
• When should organisations treat an NHI as a high-priority risk?