Security is a chain of responsibilities.
Trust comes from knowing which controls belong to the gateway, the merchant, the acquiring setup and the payment method — not from displaying badges without evidence.
Protect the transaction at every handoff.
Merchant
Account security, website integrity, customer communication and fulfilment evidence
Gateway
Secure transaction handling, credential protection, event integrity and operational monitoring
Acquiring route
Payment-method approval, authentication requirements, settlement and dispute rules
Customer
Accurate details, authentication steps and timely dispute communication
Controls that reduce exposure
Design for less sensitive data, fewer ambiguous events and faster investigation.
- Transport
- HTTPS, current TLS and strict security headers for every public route.
- Credentials
- Server-side secrets, scoped access and rotation procedures.
- Payment data
- Hosted or tokenized patterns that reduce direct handling wherever possible.
- Events
- Signature verification, idempotency and amount/reference checks.
- Operations
- Audit-friendly records, monitoring and a defined escalation route.