HIPAA, PCI DSS and SOC 2: Key Differences for Cloud Teams

HIPAA, PCI DSS and SOC 2: Key Differences for Cloud Teams

HIPAA, PCI DSS and SOC 2 are not interchangeable. The differences between them come down to three things: what data each framework protects, which organisations it applies to and what a regulator or auditor expects to find.

These are not competing standards. In many cloud environments, all three apply simultaneously. Getting them confused, or treating them as variations of the same requirement, is one of the most consistent compliance mistakes cloud and security teams make.

HIPAA protects individually identifiable health information. PCI DSS protects payment card data. SOC 2 is not a regulation at all. It is an auditing framework that evaluates whether a service organisation’s security controls meet a defined threshold.

Each has a different legal basis, different enforcement mechanism and different consequences when an organisation falls short.

What Is HIPAA and Who Does It Apply To?

The Health Insurance Portability and Accountability Act, passed by the US Congress in 1996, sets federal standards for the protection of Protected Health Information, or PHI.

It applies to covered entities, including healthcare providers, health plans and healthcare clearinghouses. It also applies to their business associates, meaning any third party that creates, receives, maintains, or transmits PHI on their behalf.

In cloud environments, this matters immediately. A SaaS platform that processes patient records, a cloud storage provider hosting medical imaging data, or a data analytics vendor working with hospital records will typically qualify as a business associate and fall under HIPAA requirements, regardless of where the company is headquartered.

The law follows the data, not the geography.

The two rules that carry the most operational weight are the Privacy Rule and the Security Rule. The Privacy Rule governs how PHI can be used and disclosed. The Security Rule sets specific administrative, physical and technical safeguards for electronic PHI.

The Office for Civil Rights at the US Department of Health and Human Services enforces both. Penalties scale with the level of negligence, from $100 per violation for unknowing breaches up to $1.9 million per violation category per year for wilful neglect that is not corrected.

According to the HIPAA Journal, 2023 saw 725 large healthcare data breaches reported to the HHS Office for Civil Rights, exposing over 133 million records. That figure represents the highest volume of records breached in a single year since reporting began.

The majority of those incidents involved third-party vendors and cloud-hosted systems, not internal hospital infrastructure.

What Is PCI DSS and Who Does It Apply To?

The Payment Card Industry Data Security Standard is not a law. It is a contractual requirement created and enforced by the PCI Security Standards Council, a body founded by Visa, Mastercard, American Express, Discover and JCB.

Any organisation that stores, processes, or transmits cardholder data is required to comply with PCI DSS, regardless of size, geography, or whether a breach has ever occurred.

The current version, PCI DSS v4.0, became the mandatory standard as of March 2024. It introduces over 60 new or updated requirements compared to v3.2.1, with significant emphasis on authentication controls, software security and customised implementation options.

These customised implementation options allow organisations more flexibility in how they meet specific requirements, provided they can demonstrate an equivalent level of protection.

Compliance is validated through a self-assessment questionnaire for lower-risk merchants or a formal assessment conducted by a Qualified Security Assessor for organisations handling higher volumes of transactions.

Non-compliance does not result in government fines. It results in financial penalties imposed by payment card brands, increased transaction fees and, in serious cases, the loss of the ability to process card payments entirely.

For e-commerce businesses and cloud platforms handling payments, that consequence can be existential.

What Is SOC 2 and Why Is It Different From the Other Two?

SOC 2, which stands for System and Organisation Controls 2, is an auditing standard developed by the American Institute of Certified Public Accountants.

Unlike HIPAA and PCI DSS, SOC 2 is not tied to a specific data type. It evaluates whether a service organisation has designed and operated controls that meet the Trust Services Criteria: Security, Availability, Processing Integrity, Confidentiality and Privacy.

Organisations choose which criteria to include in their audit scope. Security is mandatory. The others are included based on what is relevant to customer commitments.

A cloud infrastructure provider might include Availability. A data processor handling sensitive client information might add Confidentiality and Privacy.

There are two types of SOC 2 reports. A Type I report assesses whether controls are designed appropriately at a single point in time. A Type II report covers an observation period, typically six to twelve months, and evaluates whether those controls operated effectively throughout that period.

Customers and enterprise procurement teams almost universally require a Type II report, as it demonstrates sustained operational discipline rather than a one-time snapshot.

SOC 2 is not mandated by law. But in practice, it has become a de facto requirement for cloud vendors, SaaS companies and managed service providers seeking enterprise contracts.

Refusing to provide a SOC 2 report in a competitive procurement process is, in most sectors, disqualifying.

How Do the Three Frameworks Overlap in a Cloud Environment?

The overlap between HIPAA, PCI DSS and SOC 2 is where most cloud compliance programmes become complicated.

A healthcare technology company that accepts online payments and sells its platform to enterprise clients could reasonably be subject to all three at the same time. Each framework has its own audit cycle, its own documentation requirements and its own definition of what compliant actually means.

That said, the frameworks are not entirely separate. There is meaningful alignment in the technical controls they require.

Encryption of data at rest and in transit, access control, audit logging, incident response planning and vulnerability management appear in all three. An organisation that has built a serious security programme will find that a significant portion of its existing controls satisfy requirements across multiple frameworks.

The challenge is mapping those controls accurately, demonstrating compliance to each framework’s standard and managing the administrative overhead of three concurrent programmes.

This is one of the places where cloud security teams often underestimate the workload. Passing a SOC 2 Type II audit does not make an organisation HIPAA-compliant. Being PCI DSS certified does not mean PHI is adequately protected.

Each framework requires its own evidence, its own scope definition and its own engagement with the relevant auditor or assessor.

What Are the Key Technical Differences Between the Three Frameworks?

HIPAA sets required safeguards but does not prescribe specific technical implementations. The Security Rule identifies what must be addressed, including access controls, audit controls, integrity controls and transmission security, but leaves the specific technology decisions to the covered entity.

This gives organisations flexibility, but it also means that two organisations can both claim HIPAA compliance while using significantly different technical approaches. The Office for Civil Rights evaluates compliance based on whether implemented controls are appropriate given the organisation’s size, complexity and the nature of the data it handles.

PCI DSS is prescriptive. The standard specifies exact requirements across twelve control domains, covering everything from firewall configuration to password complexity to penetration testing frequency.

Version 4.0 introduced customised implementation as an option for some requirements, allowing organisations to meet the intent of a control through alternative means, but only with documented justification and assessor approval.

For organisations running cloud-native architectures, the shared responsibility model between cloud provider and customer requires careful delineation of which requirements each party is responsible for.

SOC 2 is principles-based. The Trust Services Criteria define the outcomes that controls must achieve, not the specific controls themselves.

An auditor evaluates the design and effectiveness of the organisation’s controls against those criteria and issues an opinion. Two companies can receive unqualified SOC 2 Type II reports while using entirely different control environments, provided both have demonstrated that their controls work as intended over the audit period.

Where Do Organisations Most Often Get This Wrong?

The most common mistake is treating compliance as a project rather than a programme. Organisations pursue a SOC 2 audit or PCI DSS assessment as a one-time activity to satisfy a customer requirement or close a contract, then allow the underlying controls to degrade until the next audit cycle.

Regulators and auditors are increasingly alert to this pattern. A SOC 2 Type II report that covers twelve months of control operation gives auditors significant visibility into how consistently controls are applied, not just whether they existed on the day of assessment.

The second mistake is scoping errors. Under PCI DSS, organisations sometimes assume that using a third-party payment processor removes their compliance obligations. It reduces scope considerably, but it does not eliminate it.

If cardholder data touches any part of the organisation’s systems, even briefly, those systems are in scope.

Under HIPAA, organisations sometimes fail to execute Business Associate Agreements with cloud vendors before those vendors are granted access to PHI. An unsigned BAA is a HIPAA violation regardless of how secure the vendor’s platform is.

Under SOC 2, the most frequent gap is the difference between having controls and evidencing controls. An auditor cannot issue an opinion on a control that was not logged, documented, or tested during the observation period.

Controls that exist in policy documents but are not consistently applied in practice will generate exceptions, and exceptions affect the auditor’s opinion.

Understanding these distinctions is a foundation. Applying them correctly under operational pressure, across multiple frameworks, in a cloud environment and with a team that may not have deep compliance expertise, requires structured training, not just documentation.

Our Cloud Compliance Basics HIPAA PCI SOC2 In The Cloud course gives security and cloud operations teams the practical framework to manage all three compliance programmes correctly, including how to handle overlapping requirements, scope cloud environments accurately and prepare for audits without disrupting day-to-day operations.

Explore the Course → Cloud Compliance Basics HIPAA PCI SOC2 In The Cloud

What Should Cloud Teams Do When All Three Apply?

A unified control framework is the most effective approach when multiple standards apply simultaneously. Rather than managing HIPAA, PCI DSS and SOC 2 as separate compliance programmes, organisations should map their existing technical controls to the requirements of each framework and identify the gaps specific to each.

This reduces duplication of effort while ensuring that the specific requirements of each standard are met, rather than assuming that satisfying one framework automatically satisfies another.

The practical starting point is a scoping exercise for each framework.

For HIPAA, that means identifying every system, vendor and workflow that touches PHI and ensuring Business Associate Agreements are in place for all relevant third parties.

For PCI DSS, it means defining the cardholder data environment precisely and minimising its scope wherever possible through tokenisation or the use of compliant payment processors.

For SOC 2, it means selecting the Trust Services Criteria that reflect actual customer commitments and building evidence collection into day-to-day operations rather than treating it as an audit preparation activity.

Organisations that manage this well typically assign clear ownership of each framework to a named individual or team, use a GRC platform to centralise evidence collection and run internal assessments at least quarterly rather than waiting for an external audit to surface issues.

What Does Effective Compliance Look Like Across All Three Frameworks?

A well-run cloud compliance programme does not treat HIPAA, PCI DSS and SOC 2 as separate silos. The strongest programmes share a common characteristic: they integrate compliance requirements into the engineering and operations workflow rather than layering them on top as an afterthought.

For HIPAA, effective compliance means that PHI access is logged at the application level, not just the infrastructure level. It means that when a vendor relationship is established, a Business Associate Agreement is executed before access is granted, not after the product is already in production.

It also means that workforce training is role-specific, not a single annual session delivered to everyone regardless of their access to patient data.

For PCI DSS, it means that the cardholder data environment is defined precisely and that scope reduction is treated as an active engineering goal. Every system removed from scope is a system that does not require the full weight of PCI DSS controls.

Tokenisation, point-to-point encryption and the use of compliant payment service providers are not just cost-saving measures. They are risk reduction strategies with direct compliance implications.

For SOC 2, it means that evidence collection is automated where possible. Audit logs, access reviews, change management records and vulnerability scan results should be captured continuously and stored in a format that an auditor can review, not reconstructed from memory in the weeks before an assessment period ends.

The gap between a programme that works and one that fails audits is rarely the security controls themselves. It is the discipline of operating those controls consistently and demonstrating that operation with evidence.

Practical Guidance: What Cloud and Security Teams Should Be Doing Now

This section covers the actions that separate organisations managing compliance effectively from those discovering gaps during an audit.

Review Your Business Associate Agreements Before Your Next HIPAA Risk Assessment

Every vendor with access to PHI needs a signed BAA in place. That includes cloud infrastructure providers, backup and disaster recovery vendors, analytics platforms and any SaaS tool used by clinical or administrative staff.

The absence of a BAA is a direct HIPAA violation. It does not matter how secure the vendor’s platform is.

Define Your Cardholder Data Environment in Writing and Minimise It Deliberately

Organisations subject to PCI DSS should document exactly which systems, networks and people fall within scope of the standard.

Any system that stores, processes, or transmits cardholder data is in scope. Any system connected to an in-scope system is in scope by extension.

Reviewing that scope annually and reducing it wherever possible through tokenisation or segmentation reduces both compliance burden and breach risk.

Distinguish Between SOC 2 Type I and Type II When Evaluating Vendors

A SOC 2 Type I report means a vendor’s controls were assessed at a single point in time. A Type II report covers an observation period of six to twelve months and provides evidence that controls operated effectively throughout.

When assessing cloud vendors and service providers, always request a Type II report and review the auditor’s exceptions section, not just the overall opinion.

Build Evidence Collection Into Operations, Not Audit Preparation

The most common reason SOC 2 audits generate exceptions is that controls existed but were not consistently documented.

Access reviews, change approvals, incident response tests and security training completions should all be logged as they happen.

If evidence only exists because someone assembled it before the audit, it will not hold up to scrutiny over a twelve-month observation period.

Assign Clear Framework Ownership Across Your Team

HIPAA, PCI DSS and SOC 2 have different owners in most organisations. A privacy officer or compliance manager may own HIPAA, a security or finance team may own PCI DSS, and a security or engineering team lead may own SOC 2.

When ownership is unclear, requirements get missed. When it is assigned explicitly, accountability follows.

Do Not Rely on Your Cloud Provider’s Compliance Status to Cover Your Own Obligations

AWS, Google Cloud and Azure maintain HIPAA Business Associate Agreements and PCI DSS certifications for their infrastructure services. That covers the infrastructure layer.

It does not cover the applications you build on top of it, the data you store, the access controls you configure, or the workforce training you are responsible for.

The shared responsibility model has a customer side. It requires active management.

If you are managing cloud compliance across any combination of these frameworks, structured training is the most reliable way to build consistent capability across your team.

Our Cloud Compliance Basics HIPAA PCI SOC2 In The Cloud course walks security professionals, cloud architects and compliance leads through the real-world application of all three frameworks, including how to scope environments, manage overlapping requirements and prepare for external audits without disrupting operations. 

Explore the Course → Cloud Compliance Basics HIPAA PCI SOC2 In The Cloud

Frequently Asked Questions

Does HIPAA apply to cloud service providers outside the United States?

HIPAA applies to covered entities and business associates regardless of where those organisations are based, provided they handle the PHI of US patients.

A cloud storage company headquartered in the UK, for example, that stores electronic health records for a US hospital will typically qualify as a business associate under HIPAA and must sign a Business Associate Agreement with the covered entity.

The relevant test is not the vendor’s location. It is whether they create, receive, maintain, or transmit PHI on behalf of a covered entity.

If the answer is yes, HIPAA requirements apply and must be addressed contractually and operationally before access to PHI is granted.

Can a Company Be Both PCI DSS Compliant and Still Have a Data Breach?

Yes, and this happens more often than the industry acknowledges. PCI DSS compliance is assessed at a point in time or over an audit period. It does not guarantee that a breach cannot occur after that assessment.

Verizon’s Payment Security Report has noted over successive years that many organisations that suffered payment card breaches had previously been assessed as compliant. The standard reduces risk. It does not eliminate it.

The most effective security programmes treat PCI DSS as a minimum baseline, not an end state, and layer additional controls, such as continuous monitoring, threat detection and penetration testing beyond the required frequency, on top of the standard’s requirements.

What Is the Difference Between a SOC 2 Report and a SOC 2 Certification?

SOC 2 is not a certification. There is no body that certifies organisations as SOC 2 compliant.

A SOC 2 report is an auditor’s opinion, issued by a licensed CPA firm, on whether an organisation’s controls meet the Trust Services Criteria.

An unqualified opinion means the auditor found the controls to be suitably designed and operating effectively. A qualified opinion means exceptions were identified.

Organisations sometimes market themselves as SOC 2 certified, but that language is technically inaccurate.

When evaluating a vendor, always request the full report and review both the auditor’s opinion and the exceptions section rather than relying on a vendor’s self-description of their compliance status.