Challenge 01
PII + payment data on a pre-audit stack
Customer-facing portal handled KYC, lending decisions, and card-on-file payments — but had never been audited end-to-end since the v1 launch.
Industry
Fintech & Banking
Services rendered
- Web Application Pentest
- API Security Audit
- Mobile App Pentest
Frameworks
- CERT-In
- ISO 27001
- PCI DSS
- RBI ITSC
Engagement
10 weeks
Region
India
Scope
Customer-facing portal + payments stack + mobile apps
The Challenge
What the team was up against
Challenge 02
RBI ITSC + PCI DSS deadlines stacking
Two separate regulator deadlines in the same quarter, both demanding pentest evidence the firm did not yet have.
Challenge 03
Mobile + API surface growing faster than security
Customer mobile app shipped weekly; new partner APIs onboarded monthly. No SAST/DAST in CI and no consistent threat-model review.
Our Approach
How we solved it
Step 01
Three-tier authenticated pentest
Web + REST API + iOS + Android pentested in parallel against the OWASP ASVS + MASVS L2 baseline. Every finding documented with reproducible PoC + remediation guidance + retest plan.
Step 02
PCI DSS + RBI ITSC evidence pack
Mapped findings to PCI DSS 4.0 and RBI ITSC controls so the same engagement produced the auditor-ready evidence both regulators needed.
Step 03
Secure-SDLC integration
Threat-modelling workshop with engineering. Added SAST gates + dependency scanning to CI so net-new code paths get triaged before they hit production.
The Results
What changed after the engagement
62
Vulnerabilities surfaced
11 Critical, 19 High, 32 Medium — across web, API, and mobile surfaces.
100%
Critical + High remediated
Every Critical + High patched and confirmed on the retest pass within the 10-week engagement window.
0
Post-engagement breaches
18 months of clean operations + a successful RBI ITSC audit on the first try.
Certbar Security collaborated with a leading fintech banking firm to bolster their cybersecurity framework. This case study delves into our systematic approach to identifying vulnerabilities and implementing robust security measures tailored for the fintech sector. Our solutions were designed to protect sensitive financial data, ensure regulatory compliance, and defend against sophisticated cyber threats.
Through our comprehensive cybersecurity services, the fintech banking firm achieved substantial enhancements in their security posture. This case study highlights our methodology from initial assessment to final implementation, showcasing the tangible benefits realized. Enhanced data protection, reduced risk of cyber attacks, and increased customer trust are key outcomes, underscoring the value Certbar Security brings to the fintech industry.
FAQs
FAQs
Fintech firms often encounter threats such as data breaches, payment fraud, and ransomware attacks, which can compromise sensitive financial data and customer trust.
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