pelecard-payment-gateway

The fragment outlines a functional payment gateway integration with legitimate data flows and multiple verification paths. The primary security concerns are credential handling, potential exposure of sensitive data in logs or intermediaries, inconsistent use of legacy vs modern endpoints, and data-retention/privacy considerations for cardholder data. Mitigations should include: restricting credential exposure (no logging of terminal/user/password), enforcing TLS with strong cipher suites, suppressing or masking sensitive fields in logs, standardizing on a single current gateway path with explicit documentation, implementing explicit end-to-end integrity checks or signatures beyond amount matching, and ensuring PCI-DSS compliant handling of all payment data. If integrated into an open-source library, remove hardcoded endpoints, expose configuration for current gateway, and audit logging to avoid inadvertently leaking secrets or card data.