Retail and e-commerce
PCI DSS logging and card data discovery for retailers.
Security built for stores and online retail
Retail teams need to protect customer information while stores, payments and fulfillment keep moving. Shared SIEM monitoring gives investigators a history across locations and makes collection gaps visible.
Requirements
| PCI DSS | What the QSA tests | Supporting evidence |
|---|---|---|
| 10.3.2 | Audit logs protected from modification. | Signed, chained logs. → |
| 10.4.1.1 | Automated audit log review. | Automated review and a PCI DSS report. → |
| 10.7.2 | Alert when audit logging fails. | An alert when a source goes silent. → |
| 12.5.2 | All locations of account data confirmed. | DLP discovery scans. → |
| 12.10.7 | Response to PAN found where not expected. | Stray card data can open a case. → |
| 6.4.3, 11.6.1 | Payment page scripts. | Not covered. → |
PCI DSS 10.4.1.1
Automated analysis can help identify activity requiring attention across the PCI DSS systems in scope. A useful process also assigns review and follow-up, preserving the decisions behind the report.
PCI DSS 10.7.2
A store that stops reporting creates a gap in the investigation record. Collection-health alerts in a SIEM help the operating team find the cause and document when service was restored.
PCI DSS 12.5.2
Discovery scans by a DLP help identify card data in unexpected repositories. Review matches with the data owner, update the scope where needed and follow a defined process for the information found.
Social engineering
A reset can be legitimate or part of an account takeover. Compare the account’s subsequent sign-ins, destinations and actions with its history and the help-desk record.
By rule
10.3.2
Audit logs protected from modification. Signed records from a SIEM and verification material support an independent check of the evidence’s integrity.
10.7.2
Alert when audit logging fails. Collection-health monitoring in a SIEM shows when a source stops reporting and helps the team investigate the gap.
12.5.2
All locations of account data confirmed. Discovery scans by a DLP identify matching content in supported repositories so the data owner can review its location and handling.
12.10.7
Response to PAN found where not expected. A SOAR incident workflow retains ownership, evidence, approvals and actions so reviewers can follow the response.
6.4.3, 11.6.1
Payment page scripts. This function is handled by the organization’s separately defined systems and procedures.
Questions
Where is card data we did not expect?
Discovery by a DLP can inspect supported endpoints, file servers and databases, including text recognized in images where configured. Findings identify locations that need review and handling decisions.
What if a store loses its connection?
The SIEM agent holds logs until the link returns, and an alert names the silent store.
Can customer records leave?
DLP content and fingerprinting policies can identify protected records on covered transfer paths. Evaluate the actual files and applications used, with a process for approved sharing.
What stays with the retailer?
The retailer owns payment systems, payment-page security, tokenization and its broader PCI DSS program. Monitoring and data protection supply evidence for the controls they support.
Guide
What changed in PCI DSS 4.0.1 for logging?
Since March 31, 2025, audit log reviews must be automated (10.4.1.1) and logging failures must be detected and alerted (10.7.2).
How long must PCI DSS logs be kept?
12 months, with the most recent three months immediately available (10.5.1).
How do retailers find stray card data?
Scan endpoints, file servers and databases for card numbers, as PCI DSS 12.5.2 scoping requires.
How ARRTECH takes care of retail security
Connects security activity into a signed record, giving incident decisions and board reporting evidence that can be independently verified.
Protects intellectual property and customer trust, with content-aware controls that let organizations adopt AI on their own terms.
Expands response capacity through automation, with defined human authority and a record of who approved what.
Finds changes in behavior that predefined rules miss, connecting the signs of an attack so teams can understand what warrants action.
Investigates alerts, tests explanations and prepares the evidence, giving analysts more capacity while people retain authority over the response.
