PCI DSS vs SOC 2: Key Differences

What each framework is

PCI DSS is a specific, prescriptive standard focused on one thing: protecting payment card data. It applies to any organization that handles card data and consists of concrete requirements for securing that data, validated through self-assessment or a formal report. Its scope is narrow and its requirements are detailed and mandatory for card-accepting businesses.

SOC 2, by contrast, is a flexible attestation framework based on the Trust Services Criteria developed by the AICPA. It assesses how well an organization's controls protect customer data across criteria such as security, availability, processing integrity, confidentiality, and privacy. Rather than prescribing specific controls, it evaluates the controls an organization has chosen against these criteria, producing an auditor's report.

Different purposes

The two frameworks exist for different reasons. PCI DSS exists to protect the payment card ecosystem, mandated by the card brands as a condition of accepting cards. Its driver is the specific need to secure cardholder data and prevent payment fraud. If you take card payments, PCI DSS is effectively required.

SOC 2 exists to give customers, particularly in B2B and SaaS contexts, assurance about how a service organization handles their data more broadly. It is typically driven by customer and procurement demands rather than a card-brand mandate. A company pursues SOC 2 because its customers want evidence of sound security practices around the data they entrust to it, which is a broader concern than payment cards alone.

Different scope of data

A core difference is the data each protects. PCI DSS is concerned specifically with cardholder data — payment card numbers and related information. Its entire focus is the security of that particular, narrowly defined data type, and its scope is bounded by where that data flows.

SOC 2 concerns customer data and systems more generally. It is not limited to payment information; it addresses how an organization protects the broad range of data and services it provides to customers, evaluated against the Trust Services Criteria. This makes SOC 2 broader in the type of data it covers, while PCI DSS is deeper and more prescriptive about its single, specific data type.

Certification vs attestation

Both frameworks are validated rather than certified in the formal sense, but the mechanisms differ. PCI DSS is validated through a Self-Assessment Questionnaire or a Report on Compliance, producing an Attestation of Compliance. SOC 2 is validated through an examination by a licensed CPA firm, producing a SOC 2 report containing the auditor's opinion, available as a Type 1 (design at a point in time) or Type 2 (operating effectiveness over a period).

Neither produces a certificate from a central certifying body; both are attestation-based. The SOC 2 report is a detailed document shared under restriction with customers, while the PCI Attestation of Compliance is a more standardized declaration collected by acquirers and partners. Understanding that both are attestations, validated by different parties for different audiences, clarifies how each is used.

Who needs which

The question of who needs which is usually straightforward. If you accept payment cards, you need PCI DSS — it is effectively mandatory. If you are a service organization, particularly a SaaS or technology company whose customers want assurance about your data handling, you likely need SOC 2 to win and keep business, especially in the United States.

Many organizations need both. A SaaS company that accepts card payments for its subscriptions and handles customer data on its platform requires PCI DSS for the payment data and SOC 2 for the broader customer-data assurance its enterprise buyers demand. Far from being alternatives, the two frameworks often address different obligations that the same company holds simultaneously.

How they overlap

Despite their differences, PCI DSS and SOC 2 share a large common core of security controls. Access control, encryption, logging and monitoring, vulnerability management, secure development, and security policies all feature prominently in both. The underlying security practices that satisfy PCI DSS requirements also support the security criterion of SOC 2, and vice versa.

This overlap is substantial enough that work done for one framework significantly reduces the work for the other. An organization that has built strong controls and gathered evidence for PCI DSS will find much of its SOC 2 foundation already in place, and the same in reverse. Recognizing this overlap is the key to pursuing both efficiently rather than treating them as wholly separate projects.

Pursuing both efficiently

Because of their overlap, the smart way to approach both frameworks is together, as a coordinated program rather than two isolated efforts. Building the shared controls once, gathering evidence that serves both, and aligning the timelines lets an organization satisfy both with far less than double the effort. This is why bundling certifications is so economical.

An organization that needs both should map the common requirements, implement the shared controls to satisfy the stricter of the two where they differ, and coordinate the validations. This approach avoids the waste of building the same control twice or gathering duplicate evidence, and it is exactly why providers offer discounts for pursuing multiple frameworks together — the marginal effort for the second is much smaller than the first.

In practice, organizations that plan for both from the outset find the second framework adds only a fraction of the work of the first. The controls are already running and the evidence is already being collected, so what remains is mostly mapping and additional documentation rather than building new systems from scratch.

Choosing your starting point

If you need both but must start with one, the choice usually depends on what is most urgent. If a card-accepting obligation or a payment deadline is pressing, PCI DSS may come first. If an enterprise customer is demanding a SOC 2 report to close a deal, SOC 2 may take priority. Often the immediate commercial or contractual driver decides the sequence.

Whichever you start with, building the shared controls with both in mind makes adding the second far easier. Approaching your first framework as the foundation for the second, rather than a standalone project, sets you up to extend into the other quickly when the need arises. This forward-looking approach turns a sequence of frameworks into a single, cumulative security program.

How ISpectra helps with PCI DSS and SOC 2

Because PCI DSS and SOC 2 overlap so heavily, pursuing them together is far more efficient than tackling them separately, and ISpectra Technologies specializes in exactly this. ISpectra helps organizations map the shared controls, build them once to satisfy both frameworks, and coordinate the validations so the path to pci dss certification and a clean SOC 2 report is a single, streamlined effort.

With free vulnerability assessment and penetration testing supporting both frameworks and a 10% discount when they are pursued together, ISpectra turns two demanding requirements into one coordinated program — capturing the overlap to save time and cost while satisfying both your card-brand obligations and your customers' assurance demands.