Security for FinTech

Security testing for FinTech and financial platforms.

Tessen Security supports fintech penetration testing across customer applications, financial workflows, payment integrations, identity controls, and internal platforms that support sensitive operations.

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Industry security context

Financial platforms need security testing that follows money, identity, and authorization.

FinTech environments combine sensitive financial data, regulated workflows, partner integrations, and high-value customer accounts. Tessen Security evaluates how attackers could manipulate authorization boundaries, transaction states, API assumptions, and operational tooling. The goal is not only to find vulnerabilities, but to validate whether a weakness could affect transaction integrity, customer trust, or internal control over financial workflows.

Primary attack surfaces

Customer applications
Payment APIs
Authentication
Transaction workflows
Internal platforms
Third-party integrations

What we can assess.

Financial services penetration testing
API security
Authorization boundaries
Transaction logic
Account takeover paths
Integration weaknesses

Transaction integrity

We examine whether users can alter amounts, states, beneficiaries, approvals, or workflow transitions in ways the application logic did not intend.

Partner and payment infrastructure

FinTech security testing often depends on how internal applications exchange trust with processors, banking partners, identity providers, and risk systems.

Relevant Tessen Security services

Penetration Testing as a ServiceExpert-led assessments for applications, APIs, cloud, external networks, and AI systems.Attack Surface ManagementRecurring automated and AI-assisted testing for your external attack surface.Vulnerability TriageValidate reported vulnerabilities and prioritize real exploitable risk.

Need an independent view of your security exposure?

Talk directly with a Tessen Security expert about your applications, infrastructure, and testing requirements.

Talk to a Security Expert