Global · PCI Security Standards Council
PCI DSS 4.0

Payment Card Industry Data Security Standard

The global standard that sets security requirements for any entity that stores, processes or transmits payment-card data.

Status · v4.0.1 current; v3.2.1 retired 31 March 2024

What PCI DSS 4.0 actually is.

PCI DSS is the payment-card industry's mandated baseline for protecting cardholder data. v4.0 introduced 64 new or clarified requirements, including targeted risk analysis, DMARC-style phishing controls, client-side script-integrity monitoring (6.4.3) and detection of payment-page script tampering (11.6.1). Merchants and service providers are required to comply; levels of validation depend on annual transaction volumes and scheme requirements.

Applies to

All entities that store, process or transmit cardholder data and/or sensitive authentication data - merchants, service providers, acquirers, issuers and processors.

Key requirements

The control areas the framework covers.

Summary of the control families and outcomes the framework drives. Always validate against the official publication for the authoritative wording.

  1. 01

    Build and maintain secure networks

    Install and maintain network security controls; apply secure configurations to system components.

  2. 02

    Protect account data

    Protect stored account data and protect it with strong cryptography during transmission over open networks.

  3. 03

    Maintain a vulnerability management program

    Protect against malicious software, and develop and maintain secure systems and software.

  4. 04

    Implement strong access control

    Restrict access to system components and cardholder data by business need-to-know; identify users; restrict physical access.

  5. 05

    Regularly monitor and test networks

    Log and monitor access, and test the security of systems and networks regularly.

  6. 06

    Maintain an information-security policy

    Support information security with organisational policies and programs.

Official source

Read it from the issuing body.

For anything with a regulator or certification body behind it, the authoritative text is what counts - not our summary.

PCI Security Standards Council

Payment Card Industry Data Security Standard

pcisecuritystandards.org/document_library

Content on this page is a plain-language summary for programme planning. It is not legal or regulatory advice, and it does not replace a current copy of the issuer's publication.

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