How to Review Security Controls for a Payment Gateway Integration

A new payment provider changes where payment data flows, who can access transaction records, how callbacks are authenticated, and which systems can issue refunds. Configuration errors can expose data or create fraud opportunities.

What to check

Review provider security documentation, tokenization, webhook signature validation, admin roles, refund controls, data retention, incident notification, and test versus production credentials. Map every system that receives transaction data.

Recommended next step

Use tokenized data where possible, separate credentials by environment, verify webhook authenticity, and require appropriate approval for refunds. Test reconciliation and recovery paths before enabling live transactions.

How Informatix Systems can help

Informatix Systems provides cybersecurity and payment integration review services. We can review the setup, trace the issue through relevant systems, and help plan a practical correction. Contact us with the platform involved, when the issue began, and non-sensitive error details.