PCI DSS Compliance

Implement PCI DSS v4.0 requirements for protecting cardholder data across the Cardholder Data Environment (CDE), including network segmentation, encryption, access controls, and ongoing testing.

When to Use

• Processing, storing, or transmitting payment card data
• Scoping the Cardholder Data Environment for PCI assessment
• Selecting the appropriate Self-Assessment Questionnaire (SAQ)
• Implementing network segmentation to reduce CDE scope
• Preparing for QSA assessment or ASV scanning

SAQ Types and Applicability

saq_types:
  SAQ_A:
    description: "Card-not-present merchants using fully outsourced payment"
    applies_when:
      - All payment processing fully outsourced to PCI-compliant third party
      - No electronic storage, processing, or transmission of cardholder data
      - Only payment page redirects or iframes from compliant provider
    requirements: ~22 questions

  SAQ_A_EP:
    description: "E-commerce merchants with website that affects payment security"
    applies_when:
      - E-commerce channel only
      - Website controls redirect to or loads payment page from third party
      - No direct processing but website could affect transaction security
    requirements: ~191 questions

  SAQ_B:
    description: "Merchants with only imprint machines or standalone terminals"
    applies_when:
      - Only standalone POS terminals (dial-out or IP connected)
      - No electronic cardholder data storage
      - No e-commerce channel
    requirements: ~41 questions

  SAQ_C:
    description: "Merchants with payment application systems connected to internet"
    applies_when:
      - Payment application connected to internet
      - No electronic cardholder data storage
      - No e-commerce channel
    requirements: ~160 questions