Ecommerce PCI Compliance
Made Simple and Audit-Ready
Every online store that accepts card payments has PCI obligations — regardless of whether you use Stripe, Shopify, or a custom checkout. We scope your exact requirements, identify the gaps, and get you audit-ready without unnecessary complexity or cost.
Industry Overview
Why PCI Compliance Is Non-Negotiable for Online Merchants
Every ecommerce business that accepts, processes, stores, or transmits card payment data falls under the Payment Card Industry Data Security Standard (PCI DSS). This applies regardless of your transaction volume, whether you use a hosted gateway, or how small your store is. The question isn't whether PCI compliance applies to you — it's which level of compliance applies.
Online merchants face a uniquely complex compliance landscape. Unlike physical retail, your checkout experience combines your own code, third-party scripts, payment gateway APIs, and potentially a platform like Shopify or WooCommerce — each introducing separate risk and scope considerations. A single misconfigured integration or unreviewed plugin can pull you from a simple 22-question SAQ A into a 329-requirement SAQ D assessment.
The risks are equally elevated. Ecommerce payment pages are the primary target of Magecart-style JavaScript skimming attacks, which silently steal card data from your customers' browsers without touching your servers. PCI DSS v4.0 introduced specific requirements (Requirement 6.4) to address this threat — requirements that many merchants are not yet meeting.
We work specifically with ecommerce businesses to establish the correct compliance scope, close identified gaps efficiently, and build a compliance posture that holds up under QSA review.
At a glance
Key Challenges
PCI Compliance Hurdles Specific to eCommerce
Payment Page Script Attacks
Magecart and similar JavaScript skimming attacks target checkout pages directly in the browser. PCI DSS v4.0 Requirement 6.4 now mandates a formal script inventory, authorisation, and tamper-detection mechanism for all payment pages — catching many merchants off guard.
A single injected script can silently harvest every card number entered at checkout for months before detection.
Third-Party Payment Integrations
Using Stripe, Braintree, or PayPal does not remove your PCI obligations. Your scope depends on how you integrate — iframe versus direct API, redirect versus in-page form — and each carries different SAQ eligibility and evidence requirements.
Merchants that incorrectly assume a gateway handles all compliance frequently fail their first QSA review.
Platform-Specific Scoping
Shopify, WooCommerce, Magento, and custom-built stores each create different cardholder data environment (CDE) boundaries. Customisations, plugins, and server-side rendering can unexpectedly expand your scope into SAQ A-EP or higher.
A WooCommerce store with a custom checkout plugin may require a full SAQ D assessment instead of the simpler SAQ A.
Subscription and Stored Card Data
Ecommerce businesses offering subscriptions, saved payment methods, or one-click checkout must manage stored cardholder data carefully. Storing PANs without a compliant vault or tokenisation solution creates severe legal and financial exposure.
Requirement 3 prohibits storing sensitive authentication data post-authorisation under any circumstance.
ASV Scanning and Vulnerability Management
All internet-facing ecommerce infrastructure must be scanned quarterly by an Approved Scanning Vendor. Failed scans delay SAQ submission and can trigger acquiring bank reviews. Many merchants discover misconfigured headers, outdated TLS, or open ports during their first scan.
Quarterly ASV scans are mandatory for all SAQ A-EP, SAQ C, and SAQ D merchants regardless of transaction volume.
TLS and Secure Transmission
All cardholder data in transit must be encrypted using TLS 1.2 or higher. Older TLS versions, self-signed certificates, and mixed-content pages create compliance gaps that are straightforward to close but frequently overlooked in growing stores.
Requirement 4 requires merchants to document every transmission pathway that touches cardholder data.
How We Help
Services Mapped to Your Compliance Journey
We don't offer a generic checklist service. Every engagement is scoped to your specific platform, integration, and compliance maturity — so you only pay for what you actually need.
PCI Readiness Assessment
Establish exactly where you stand before a formal audit. We identify your SAQ type, map your cardholder data environment, and produce a prioritised gap list so you know what needs to be fixed — and in what order.
Gap Analysis
A systematic control-by-control review of your current environment against PCI DSS v4.0 requirements. Delivered as a structured remediation roadmap with timelines, responsible owners, and evidence checklists.
Remediation Support
Hands-on guidance through the hardest fixes: script inventory implementation, network segmentation validation, tokenisation architecture, and policy documentation — so your team isn't navigating PCI alone.
Audit Preparation
Pre-audit evidence packs, SAQ completion review, and QSA liaison support. We prepare your team for QSA interviews and make sure every control has the documentation required to pass.
What's at Risk
The Real Cost of Non-Compliance
Non-compliance isn't just a regulatory issue — it's a business continuity risk that can shut down your ability to accept payments overnight.
Financial Penalties
Card brands can impose fines of $5,000–$100,000 per month for non-compliance. After a confirmed data breach, fines escalate significantly and forensic investigation costs are passed to the merchant.
Payment Processing Suspension
Acquiring banks can suspend your ability to process card payments following a breach or sustained non-compliance. For an ecommerce business, this is an existential risk.
Customer Data Breach
A checkout-page skimmer or stored PAN exposure can expose thousands of customer card numbers. Breach notification obligations, card reissuance costs, and reputational damage follow immediately.
Legal and Regulatory Exposure
Beyond card brand fines, a breach can trigger state data protection enforcement, class-action litigation, and payment processor liability claims — each carrying independent financial risk.
Our Approach
How We Get You Audit-Ready
Discovery Call
We understand your tech stack, transaction volume, payment methods, and current compliance status in a focused 30-minute session.
Scope Definition
We identify your cardholder data environment, determine your correct SAQ type, and confirm what's in and out of scope before any assessment work begins.
Gap Assessment
A structured evaluation of your controls against PCI DSS v4.0 requirements — network security, data protection, access control, monitoring, and policies.
Remediation Roadmap
Every gap is documented with a severity rating, owner assignment, and actionable fix guidance. You leave with a clear plan, not just a list of problems.
Audit Readiness Review
Pre-audit walkthrough of your evidence pack, SAQ responses, and control documentation to ensure you're ready for QSA review without surprises.
Who This Is For
Built for Ecommerce Operators at Every Scale
Shopify Merchants
From basic storefronts to Shopify Plus enterprise accounts with custom checkout extensions.
WooCommerce Stores
WordPress-based stores using WooPayments, Stripe, or custom payment plugins.
Custom-Built Platforms
Direct API integrations, headless commerce, and bespoke checkout implementations.
Subscription Businesses
Recurring billing, stored cards, and subscription management platforms.
Marketplaces
Multi-vendor platforms handling payments on behalf of third-party sellers.
High-Volume Retailers
Merchants approaching Level 1 thresholds (6M+ transactions/year) requiring a formal ROC.
Compliance Requirements
Key PCI DSS Requirements for Ecommerce
PCI DSS v4.0 contains 12 requirement domains. Here are the ones most relevant to ecommerce operations.
Data Protection
No storing of sensitive authentication data post-auth. All cardholder data in transit must use TLS 1.2+ on every pathway.
Secure Applications & Script Control
All payment page scripts must be inventoried, authorised, and monitored for integrity under PCI DSS v4.0.
Access Control & MFA
Access to your CDE restricted to those who need it. MFA required on all non-console access to in-scope systems.
Audit Logging
Log all access to cardholder data, retain for 12 months minimum, and maintain automated alerting on critical events.
ASV Scanning & Pen Testing
Quarterly external vulnerability scans via an Approved Scanning Vendor and annual penetration testing of in-scope systems.
Case Study
WooCommerce Merchant Achieves SAQ A-EP Compliance in 6 Weeks
The Problem
A mid-sized fashion retailer running WooCommerce with a custom Stripe integration had never completed a formal PCI assessment. Their acquiring bank flagged non-compliance after a routine review. They had 90 days to resolve it or face processing suspension.
What We Did
We scoped their CDE, confirmed SAQ A-EP eligibility, and identified 14 control gaps — including missing script monitoring on their checkout page (Req 6.4), TLS 1.1 still active on one subdomain, and inadequate user access logging. We provided a prioritised remediation roadmap and weekly progress check-ins.
The Result
All 14 gaps resolved in 41 days. SAQ A-EP submitted and accepted. Acquiring bank review closed. The client now runs quarterly ASV scans and has implemented automated script integrity monitoring — reducing ongoing compliance overhead significantly.
FAQ
Ecommerce PCI Questions, Answered
Ready to Get Your Ecommerce Store Compliant?
Don't wait for your acquiring bank to flag a problem. Start with a clear picture of where you stand — and a realistic plan to get audit-ready.