Assessing security across connected banking systems
The challenge
A financial services institution needed an assessment of interconnected internet banking, mobile applications, APIs and supporting services. Testing needed sufficient depth while respecting the operational constraints of customer-facing systems.
Our approach
Agreed testing boundaries and coordinated activities around operational constraints.
Combined automated vulnerability assessment with manual penetration testing and business-logic testing.
Examined authentication, access control, sessions, API security and potential paths between connected systems.
The outcome
The client received a prioritised view of security weaknesses, supported by technical evidence, risk ratings and practical recommendations. This helped focus remediation planning on risks to critical banking services.
A mobile banking application depended on backend APIs and multiple security controls. Reviewing the application alone would have left important parts of the service outside the assessment.
Our approach
Assessed the mobile application together with its underlying API interactions.
Reviewed authentication, authorisation, session handling, local storage and sensitive-data exposure.
Manually validated observations to distinguish exploitable weaknesses from automated scanner findings.
The outcome
The assessment gave the client a more complete view of risks across the mobile and backend environments, with actionable recommendations for strengthening the overall service.
A payment services organisation experienced delays in supplying documents and technical evidence for a PCI DSS assessment. These dependencies affected the progression of assessment activities.
Our approach
Maintained an evidence tracker showing outstanding requirements, responsible stakeholders and dependencies.
Reviewed available evidence in parallel and followed up on missing information.
Explained the evidence expected for individual requirements so the client could address documentation gaps.
The outcome
The client gained clearer visibility of outstanding requirements and priorities. Parallel reviews allowed available assessment activities to progress while remaining evidence was gathered.
Each engagement has its own scope, constraints and evidence requirements. We agree the work and deliverables with you before testing or assessment begins.
