Payment API Security Audit
A full review of authentication, authorisation, encryption, and abuse controls across your payment APIs.
We examine how your payment APIs authenticate clients, authorise operations, protect data in transit and at rest, and resist replay, injection, and business-logic abuse.
The engagement covers gateway endpoints, tokenisation services, webhook receivers, and partner integration surfaces that move or influence funds.
Deliverables include a ranked findings report, evidence pack, and a remediation sequence your engineering and compliance owners can execute together.
What is included
- Endpoint and trust-boundary inventory
- AuthN / AuthZ and session review
- Cryptography and key-handling checks
- Abuse and fraud-control sampling
- Remediation roadmap with owners