Start with the security decision
Identify where a legitimate API call becomes an unauthorised operation, where workload credentials can cross service boundaries and what a realistic fix must preserve.
Fintech testing follows the product model: customer and merchant tenants, partner integrations, webhooks, service accounts and the state changes that move value.
A merchant API may correctly authenticate a caller but fail to bind an object to that merchant. A webhook can be authentic yet replayed at the wrong transaction state. Tests need the product’s expected business decisions, not just a list of endpoint URLs.
An agreed scope, not an open-ended scan
We define the systems, identities, workflows and interfaces needed to answer the assessment objectives. Written authorisation, third-party permission, test accounts and an agreed data set come before active work. A proposal records exclusions and dependencies as well as inclusions.
- Fintech API & tenant-boundary testing — Test the relationship between the caller, the object and the operation.
- Payment logic & transaction-state testing — Examine the decisions between an accepted request and a completed payment.
- Fintech cloud & workload identity testing — Follow credentials from CI/CD into the permissions they actually grant.
Questions the test can answer
- Can one merchant read or change another tenant’s synthetic object?
- Can an orchestration identity change a beneficiary and approve the same draft?
- Can a deployment credential or supplier session gain excess cloud or recovery authority?
These are examples for scoping, not a claim that every engagement includes every method or system. The final test plan records the permitted actions, expected outcomes and observation needed to support each conclusion.
Operational safeguards are part of the method
Use dedicated tenants, synthetic customer data and test payment rails with real settlement disabled. Agree partner-system permissions, transaction limits, rollback and release windows. Production activity must have explicit owners and a clear stop channel.
Testing can carry risk. Agree who can pause activity, which conditions trigger escalation and how genuine incidents are distinguished from exercise activity. No test is authorised by sending an enquiry through this website.
From findings to verified action
Receive an executive view, a scoped technical record, reproducible findings and a remediation register. Each finding should explain the observed result, the access or operation demonstrated, its limits and a practical acceptance test. Retest scope and timing are agreed in the statement of work.
Inspect the Fintech AG sample or review the deliverables before discussing your requirements.
