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PCI DSS vs SOC 2: Overlap, Differences, and Doing Both

PCI DSS vs SOC 2 - prescriptive card-data standard vs AICPA Trust Services Criteria attestation, where they overlap, and when you need both.

Published: September 2026 Compliance · PCI DSS 8-12 min read

PCI DSS (current SSC standard: v4.0.1) is a contractual security standard for entities that store, process, or transmit CHD/SAD, or that can impact CHD/SAD security. Validation uses SAQ or ROC plus AOC (and ASV scans where required). SOC 2 is a report on controls at a service organization relevant to one or more Trust Services Criteria (TSC): Security, Availability, Processing Integrity, Confidentiality, and Privacy - governed by AICPA criteria and performed as an attestation engagement by a CPA firm. Security is evaluated primarily through the common criteria; other categories add supplemental criteria when in scope.

Related: PCI vs ISO 27001 · Certification myth · ROC and AOC · Requirement 10 · SAQ types.

Gotcha: A clean SOC 2 Type II report does not prove PCI DSS compliance, and a PCI AOC does not replace a SOC 2 report your enterprise customers request. Different audiences, different evidence, different assessors (QSA/ISA vs CPA).

PCI DSS vs SOC 2

Topic
PCI DSS
SOC 2
Owner / framework
PCI Security Standards Council
AICPA Trust Services Criteria
Primary purpose
Protect payment account data; brand/acquirer validation
Assure user entities about system controls for selected TSC
Nature
Prescriptive requirements and testing procedures
Criteria-based; management designs controls to meet criteria
Output
SAQ or ROC + AOC; ASV reports
Type I (point-in-time design) or Type II (operating effectiveness over a period)
Assessor
QSA / ISA (per brand path); ASV for external scans
Licensed CPA / firm under AICPA SOC standards
Enforcement
Card brands / acquirers (contractual)
Market / contractual customer demand (not PCI SSC)
Scope focus
CDE + connected-to / security-impacting systems
System description for the service(s) in the report

Overlap and Doing Both

Logging and monitoring, access control, change management, vulnerability management, and incident response often produce evidence reusable across both programs when scoped carefully - but requirement IDs and testing procedures differ. Payment processors, gateways, and fintech SaaS that handle or impact card data and sell to enterprises that require SOC 2 typically need both. Define PCI scope first (non-negotiable for card acceptance), then align the SOC 2 system description and TSC selection so evidence collection is not duplicated blindly.

How CyberSilo Helps

Map PCI DSS v4.0.1 Controls to Continuous Evidence

CyberSilo CSA and ThreatHawk SIEM help US merchants and service providers collect QSA-ready evidence across scoping, cloud, and SAQ/ROC validation paths.

Frequently Asked Questions

Can SOC 2 replace SAQ A?

No. Acquirer and brand PCI validation remains separate from SOC 2 customer assurance.

Is Security the only Trust Services Criterion required?

Security (common criteria) is the baseline category for typical SOC 2 engagements; other TSC are included when relevant to the service and report scope.

Type I or Type II for PCI customers?

PCI DSS does not use Type I or Type II. Customers asking for SOC 2 usually want Type II covering a period.

PCI vs ISO 27001 · Certification myth · ROC and AOC · Requirement 10 · Requirement 8 · SAQ types

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