PCI DSS v4.0.1

PCI DSS Compliance Services

For any organisation that stores, processes or transmits cardholder data — scope reduction, SAQ or RoC preparation, segmentation, quarterly ASV scanning, and penetration testing.

PCI DSS is the global standard for protecting cardholder data, enforced by the payment brands through merchant and acquirer agreements. Passeca maps your cardholder-data environment, applies scope-reduction so you validate the smallest possible surface, closes the 12 requirements, runs the required penetration tests and ASV scans, and supports your SAQ or QSA-attested RoC.

Definition

What is PCI DSS?

Payment Card Industry Data Security StandardPCI DSS Security Standards Assessor

PCI DSS (the Payment Card Industry Data Security Standard) is the global information-security standard for organisations that store, process or transmit cardholder data. It is maintained by the PCI Security Standards Council (PCI SSC), which was founded by the major payment brands — Visa, Mastercard, American Express, Discover and JCB.

PCI DSS is not a law but a contractual obligation: any merchant or service provider that accepts or handles payment cards agrees to it through acquirer and payment-brand agreements. Compliance is validated either by a Self-Assessment Questionnaire (SAQ) for lower-volume merchants or by a Report on Compliance (RoC) attested by a Qualified Security Assessor (QSA) for the largest. The current version of the standard is PCI DSS v4.0.1, organised into 12 requirement groups.

Scope

Who needs PCI DSS compliance?

  • You accept payment cards. Any merchant that takes card payments is in scope, regardless of volume.
  • You run an online store or payment gateway. E-commerce is a primary driver of PCI DSS scope.
  • You are a service provider to merchants. Payment processors, gateways and hosts handling cardholder data are service providers under the standard.
  • An acquirer or payment brand asked for validation. That request carries a deadline and a validation-type expectation.
Requirements

What does PCI DSS actually require?

PCI DSS v4.0.1 organises its requirements into six goals containing twelve requirement groups. Every requirement applies to the cardholder-data environment (CDE) and the systems connected to it; scope reduction shrinks how much of your estate that is.

  • Build and maintain a secure network — firewalls and routers (Req. 1–2), and secure configuration of system components.
  • Protect cardholder data — protect stored data (Req. 3) and encrypt transmission over open, public networks (Req. 4).
  • Maintain a vulnerability-management programme — anti-malware (Req. 5) and secure systems and applications including patching (Req. 6).
  • Implement strong access control — restrict access on a need-to-know basis (Req. 7), unique IDs (Req. 8), and restrict physical access (Req. 9).
  • Monitor and test networks — logging and log monitoring (Req. 10), and regular security testing including annual penetration testing and ASV scanning (Req. 11).
  • Maintain an information-security policy — a policy that addresses security for all personnel (Req. 12).

v4.0 added an emphasis on targeted risk analysis, customised approaches to requirements, and stronger authentication and monitoring expectations. The scope of testing and the validation path (SAQ vs RoC) depend on your merchant level and architecture.

The engagement

How Passeca helps you achieve PCI DSS compliance

  1. 01

    Scoping & cardholder-data mapping

    We map exactly where cardholder data enters, flows through and leaves your environment, and apply scope-reduction techniques — network segmentation, tokenisation, P2PE — so only the systems that truly must be in scope are in scope.

  2. 02

    Self-assessment level determination

    We determine your merchant or service-provider level and therefore whether you need a Self-Assessment Questionnaire (SAQ) or a formal Report on Compliance (RoC) attested by a Qualified Security Assessor (QSA).

  3. 03

    Gap analysis against the 12 requirements

    We assess your environment against all 12 PCI DSS requirement groups and rank the gaps. We prioritise scope reduction first because it shrinks the entire compliance surface that follows.

  4. 04

    Remediation & evidence

    We implement the missing requirements — segmentation, access control, logging, vulnerability management — and capture evidence in Hyperproof, including the penetration tests and quarterly scans the standard requires.

  5. 05

    Attestation & ongoing validation

    We support you through SAQ completion or RoC fieldwork with a QSA, arrange the required ASV quarterly scans, and set up annual revalidation so you stay compliant cycle over cycle.

Deliverables

What you get from the engagement

A cardholder-data flow map and scope-reduction plan
A merchant / service-provider level and validation-type opinion
A gap analysis against all 12 PCI DSS v4.0.1 requirements
Implemented controls — segmentation, access control, logging, patching
Network segmentation validated by penetration testing
ASV quarterly external scanning arranged and managed
Evidence pack in Hyperproof mapped to the 12 requirements
SAQ completion or QSA-RoC fieldwork support
Timeline

How long does PCI DSS compliance take?

Validation pathTypical durationWhat drives it
SAQ (low volume, scoped down)1–3 monthsScope reduction and SAQ completion
RoC — Level 1 merchant3–6 monthsRemediation plus QSA fieldwork
Service provider (RoC)3–6 monthsMulti-tenant segmentation validation

Scope reduction is the biggest time and cost lever. A well-segmented environment that keeps cardholder data on isolated systems can move from Level-1-style effort to an SAQ path. Passeca prioritises this in step one.

Cost

How much does PCI DSS compliance cost?

Cost depends on the validation path. SAQ-based compliance is far cheaper than a QSA-attested RoC. The QSA fee (for Level 1) and ASV scanning fees are billed separately from Passeca's consulting. Scope reduction is the single biggest cost lever.

Validation pathConsulting (Passeca)QSA / ASV fees
SAQPrice on requestASV scanning only
RoC — Level 1 merchantPrice on requestQuoted separately by the QSA
Service provider (RoC)Price on requestQuoted separately by the QSA
Overlap

Doing more than one framework?

 PCI DSSISO 27001SOC 2
Access control
Encryption in transit / at rest
Logging and monitoring
Vulnerability management
Annual penetration testingReq. 11.4A.8.8CC7
Information-security policy
ScopeCardholder dataWhole ISMSService org

PCI DSS, ISO 27001 and SOC 2 share the bulk of their technical controls. PCI DSS is the narrowest in scope (the cardholder-data environment only) but the deepest within that scope. Passeca maps evidence once in Hyperproof so the same controls satisfy all three.

FAQ

PCI DSS compliance, answered

The questions merchants and service providers ask about meeting PCI DSS.

What is PCI DSS?
PCI DSS (Payment Card Industry Data Security Standard) is the global security standard maintained by the PCI Security Standards Council — founded by Visa, Mastercard, American Express, Discover and JCB — for any organisation that stores, processes or transmits cardholder data. It is a contractual obligation under merchant and acquirer agreements, enforced by the payment brands.
Who needs to comply with PCI DSS?
Any organisation that stores, processes or transmits cardholder data, regardless of transaction volume. This includes merchants of every level and service providers that handle cardholder data on behalf of others. The validation requirements differ by volume — from a Self-Assessment Questionnaire for lower volumes to a QSA-attested Report on Compliance for the largest.
What is the difference between an SAQ and an RoC?
An SAQ (Self-Assessment Questionnaire) is a self-assessment used by eligible merchants and service providers, depending on their environment and validation requirements. An RoC (Report on Compliance) is a formal assessment conducted and attested by a Qualified Security Assessor (QSA), required by the largest merchants (Level 1) and large service providers.
What are the PCI DSS merchant levels?
Merchant levels are set by transaction volume. Level 1 is typically 6 million+ transactions per year across all channels (requiring an RoC and annual QSA assessment). Levels 2–4 are lower volumes and generally validate via an SAQ. The exact thresholds are set by each payment brand and acquirer.
How does network segmentation reduce PCI DSS scope?
PCI DSS scope includes the cardholder-data environment and systems that are connected to it or could affect its security. Proper network segmentation isolates cardholder data so that systems outside the segmented boundary are out of scope for most requirements — dramatically reducing cost and effort. Segmentation must be validated by penetration testing.
Does PCI DSS require penetration testing?
Yes. Requirement 11.4 requires annual penetration testing and testing after any significant network change, covering the entire cardholder-data environment perimeter and critical systems, plus segmentation controls. Passeca delivers this through our penetration-testing practice.
How much does PCI DSS compliance cost?
Cost depends on your validation level. SAQ-based validation is far cheaper than a QSA-attested RoC. Costs include Passeca's consulting, the QSA fee for Level 1 merchants and ASV scanning fees. Scope reduction is the single biggest cost lever.
What version of PCI DSS applies — and when is v4.0.1 required?
PCI DSS v4.0.1 is the current version. The future-dated requirements became effective on 31 March 2025. All new assessments and revalidations must be against v4.0.1; the earlier v3.2.1 and v4.0 are retired.
Always-on defence

Reduce your PCI scope before you validate

Book a free scoping call. We will map your cardholder-data flows, show you where scope reduction is possible, and give you the cheapest validation path for your volume.