Checkout Security Best Practices
- Use HTTPS everywhere.
- Never expose secret keys in frontend code.
- Use server-side verification before fulfillment.
- Log transaction IDs and request IDs for tracing.
Payment security is not one feature. It is a full process across checkout, integration, transaction monitoring, and merchant operations.
Strong payment security lowers fraud losses, improves success rates, and builds customer trust. It also helps maintain stable settlement performance and healthier long-term margins.