PCI DSS 4.0.1
payment pages
script attacks
QSA
2-3 week pilot
1. Confirm applicability
Separate embedded forms, redirects, SAQ A criteria, and the applicable validation path.
2. Build the controls
Connect script inventory, authorization, baseline comparison, and response.
3. Test the evidence
Use one reproducible sample to validate ownership and audit readiness.
Each topic has one primary guide so requirements, product pages, and implementation resources do not compete for the same search intent.
01
PCI DSS 4.0.1 scope and readiness
Start with applicability, all 12 requirement groups, the validation route, and an owned readiness plan.
Read article02
SAQ A, A-EP, or D
Select the questionnaire from the real payment architecture and every current eligibility criterion.
Read article03
SAQ A and payment architecture
Decide what changes for embedded forms, redirects, script-attack protection, and ASV scanning.
Read article04
Script governance for 6.4.3
Build an observed inventory with owners, authorization, justification, and integrity controls.
Read article05
Change detection for 11.6.1
Define approved baselines, meaningful deviations, triage, response, and event evidence.
Read article06
Evidence for internal and QSA review
Connect control design, operating records, exceptions, retention, and reproducible samples.
Read article07
A focused JSIR pilot
Run one checkout through inventory, baseline, controlled changes, triage, and production criteria.
Read articlePCI DSS 4.0.1 is the active limited revision of the payment card data security standard. This guide turns it into a working map: scope and validation method first, then owners, technical controls, evidence, and a prioritized readiness plan.
• PCI DSS 4.0.1 added and removed no requirements; it is a limited revision and became the only active version after 31 December 2024.
• Readiness starts with data flows and scope, not with filling in a questionnaire.
• The SAQ is selected from payment architecture and every eligibility criterion, not transaction volume alone.
Why start here
It establishes scope, the 12 requirement groups, the validation route, and an evidence-backed readiness sequence before the technical deep dives.
18 min
02
PCI DSS / SAQ selection
A practical e-commerce SAQ decision guide covering payment architecture, A and A-EP eligibility, SAQ D triggers, acquirer confirmation, and a decision-record template.
Read article03
PCI DSS 6.4.3
A practical guide to PCI DSS 6.4.3: inventory, authorization, business justification, and script integrity on checkout pages.
Read article04
PCI DSS 11.6.1
How PCI DSS 11.6.1 applies to payment page change detection, critical headers, DOM monitoring, and incident response evidence.
Read article05
Cartelta JSIR
A step-by-step Cartelta JSIR pilot: scope, script inventory, baseline, controlled changes, triage, and an evidence package.
Read article06
Payment page security
A practical guide to SAQ A after 31 March 2025: embedded forms, redirects, script-attack protection, ASV scanning, and review evidence.
Read article07
Client-side security
An iframe payment form can change PCI DSS scope, but it does not automatically make the merchant page safe.
Read article08
Audit readiness
A useful evidence pack shortens the path from a pilot to a security decision and a QSA conversation.
Read article09
Implementation
Most failures in this area are not caused by the absence of a tool; they come from defining the control incorrectly.
Read article10
Pilot strategy
A good pilot should quickly show the scope, real changes, and the next operational decision rather than proving a perfect architecture.
Read articleImplementation resources
Use the articles for decisions and the pages below for operating models, checklists, and technical review.
Who this is for
For security leaders, application security teams, e-commerce owners, and teams preparing their first payment page security pilot.
The goal is to support specific conversations with security teams and auditors, not generic content traffic.
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