National Retailer Achieves PCI DSS 4.0 Compliance Six Months Early
Retail PCI compliance depends on consistent payment security across stores, e-commerce systems, processors, and legacy infrastructure. In this case study, Scapien helped a national retailer reach PCI DSS 4.0 compliance early while reducing fraud losses and strengthening web application security.
Quick Results
- PCI DSS 4.0 compliance achieved six months ahead of deadline
- 45% reduction in card-not-present fraud
- Zero web application breaches during programme period
- $3.2M in prevented annual fraud losses
About the Organisation
A national retailer operates 800 stores with expanding e-commerce operations, multiple third-party payment processors, and ageing POS infrastructure across legacy store locations. The organisation handles large volumes of payment activity across physical and digital channels, making consistent security controls essential for both compliance and fraud reduction.
Its environment combined modern online commerce with older in-store systems, creating uneven levels of technical maturity across locations, platforms, and payment workflows. As customer purchasing shifted further toward digital channels, the retailer needed to protect cardholder data without slowing transaction flows or disrupting store operations.
The Challenge
Retail PCI compliance became a priority as the organisation approached a PCI DSS 4.0 deadline requiring substantial control enhancements. At the same time, card-not-present fraud continued to increase year over year, creating direct financial exposure and operational pressure.
The retailer also faced an expanding e-commerce attack surface, ageing POS infrastructure, and inconsistent security standards across third-party payment processors. Security teams needed a practical way to identify control gaps, prioritise remediation, and verify that payment security improvements reduced genuine business risk rather than simply satisfying compliance documentation.
How Scapien Helped
Scapien’s implementation encompassed four strategic components: a PCI gap assessment creating a detailed compliance roadmap, ongoing web application testing across e-commerce platforms, network segmentation to isolate cardholder data environments, and third-party risk management to validate payment processor security controls.
This retail PCI compliance effort helped the organisation connect regulatory requirements to measurable protective outcomes. Scapien helped the retailer focus remediation on the systems, processors, and attack paths most likely to affect cardholder data, fraud exposure, and business continuity.
Results & Impact
PCI DSS 4.0 compliance was reached six months early, with zero web application breaches during the programme period. Fraud losses decreased by 45%, helping prevent an estimated $3.2M in annual losses.
The VP of Information Security noted that compliance transformed from “a checkbox exercise” into genuine protective security infrastructure benefiting both customers and financial performance.
