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Compliance & Certification

PCI DSS v4.0 Compliance

QSA-aligned readiness, RoC support and SAQ guidance.

PCI DSS v4.0 Compliance — ISO certification stamp on an audit document, MAST Consulting Group

Overview

We help merchants, acquirers, processors and service providers achieve and maintain PCI DSS v4.0 compliance — from scoping and segmentation to RoC, SAQ-D and ASV scan remediation.

In depth

A four-layer view of this service.

Context, scope, delivery and impact — written for buyers, boards, auditors and search engines alike.

Layer 01 — Context

Context & Why It Matters

01

1 transition period.

  • Every merchant, acquirer, issuer, processor and third-party service provider that stores, processes or transmits cardholder data must now meet the new requirements — including the future-dated controls that take effect from 31 March 2025 onwards.
  • UAE, KSA and Indian payment ecosystems (CBUAE, SAMA, RBI) increasingly expect PCI DSS compliance as a precondition for licensing, sponsorship and PSP partnerships.
Layer 02 — Scope

Scope & What It Covers

02

1 requirements, all six control objectives, and the customised approach where appropriate.

  • 5), continuous monitoring and the 64 future-dated controls covering anti-phishing, automated log review, key management and payment-page integrity.
Layer 03 — Approach

Our Approach & Delivery

03

QSA-aligned delivery led by PCI Professionals (PCIP) and ISA-qualified consultants.

  • 4), prepare evidence in QSA-friendly formats, and sit through the on-site audit with you.
  • For Level 2–4 merchants we walk you through SAQ-A, A-EP, D-Merchant or D-SP and the supporting AoC.
Layer 04 — Impact

Business Impact & Outcomes

04

Clients reach validation in 90–150 days, avoid the four- to six-figure monthly non-compliance fees that acquirers levy, and materially reduce breach exposure: PCI-aligned organisations are ~50 percent less likely to suffer a confirmed card-data breach (Verizon PSR).

  • Maintained year-round, the programme supports new payment rails (Apple Pay, click-to-pay, embedded finance) without triggering a re-scope crisis at every product launch.
At a glance

Process flow, compliance checklist and benefits.

A visual breakdown of how the engagement runs, what evidence we leave behind, and the business outcomes you can defend at the board.

Process flow

How we deliver PCI DSS v4.0 Compliance.

  1. 01
    Scoping & CDE Mapping

    Identify all systems that store, process or transmit cardholder data.

  2. 02
    Gap Analysis

    Detailed assessment against all 12 PCI DSS v4.0 requirements.

  3. 03
    Remediation

    Technical and process fixes, segmentation, key management.

  4. 04
    Validation

    Penetration testing, ASV scans, internal audit.

  5. 05
    RoC / SAQ

    Report on Compliance or Self-Assessment Questionnaire support.

Compliance checklist

What auditors and regulators expect to see.

Aligned to PCI DSS v4.0.1 (mandatory from 31 March 2025) — every item is examined by the QSA before sign-off.

  • Cardholder data discovery and flow diagrams

    Storage, processing and transmission of CHD/SAD fully mapped.

  • Scope and segmentation validation

    CDE boundary, connected systems and segmentation testing evidence.

  • All 12 requirements evidenced

    Control narratives, screenshots, configs and logs per sub-requirement.

  • Targeted risk analyses (12.3.1)

    Documented TRAs for every flexible-frequency control.

  • Authenticated vulnerability scans (11.3.1.2)

    Quarterly internal scans, ASV external scans and remediation evidence.

  • Penetration testing (11.4)

    Annual app and infra tests by CREST or OSCP-qualified testers.

  • MFA on all CDE access (8.4 / 8.5)

    Including admin, remote and console access — phishing-resistant where possible.

  • AoC / RoC / SAQ submission pack

    Final attestation, executive summary and signed responsibility matrix.

Benefits

What you walk away with.

Validation in 90 to 150 days

Predictable timeline from kickoff to QSA sign-off.

Avoid non-compliance fees

Eliminate four- to six-figure monthly acquirer penalties.

Lower breach exposure

Verizon PSR: PCI-aligned firms suffer materially fewer card-data breaches.

Acquirer and PSP partnerships unlocked

Meet onboarding gates for Visa, Mastercard, Amex and regional schemes.

Launch new payment rails safely

Apple Pay, click-to-pay and embedded finance without re-scope crises.

Year-round audit readiness

Continuous evidence pipeline — not a 60-day pre-audit sprint.

FAQ

Frequently asked questions.

Are you a QSA?+

We work alongside accredited QSA firms and prepare you so the formal assessment is a confirmation, not a discovery exercise.

What's new in PCI DSS v4.0?+

Customised approach, expanded MFA, targeted risk analyses and stronger requirements on authenticated scanning, scripts and e-commerce.

Get started

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