Technical suppliers supporting payment services often receive questions about strong customer authentication, dynamic linking, API availability, fraud monitoring and audit trails. The operational challenge is keeping answers consistent across customers.
SCA and dynamic linking controls
Document how authentication factors are handled, how credentials are protected and how amount, beneficiary and authorization are linked. Keep technical evidence and policies in the same control register.
Fraud and anomaly monitoring
Prepare indicators, thresholds, escalation procedures and periodic reports. Customer responses should show that monitoring is executed and reviewed, not only declared.
Audit trail and availability
Keep log examples, retention rules, access controls and availability metrics. For APIs and open banking integrations, separate technical evidence from executive summaries.
Recommended package
- PSD2/SCA control register with customer mapping.
- Authentication and authorization evidence.
- Fraud and anomaly reports.
- API availability and incident metrics.
- Audit trail with retention and accountability.