Comprehensive API Security Audit for Fintech: Key Vulnerabilities Exposed

Comprehensive API Security Audit for Fintech: Key Vulnerabilities ExposedComprehensive API Security Audit for Fintech: Key Vulnerabilities Exposed

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Guilherme Farinassi

• Jun 8

API Security Assessment - REST and GraphQL Endpoints

Performed a black-box API security assessment covering REST and GraphQL endpoints for a fintech platform. Identified BOLA/IDOR vulnerabilities allowing unauthorized access to other users financial data, mass assignment flaws exposing admin-only fields, broken function-level authorization on privileged endpoints, and GraphQL introspection exposing internal schema. Also found SSRF via webhook URL parameter and JWT algorithm confusion (RS256 to HS256).

Delivered OWASP API Top 10 aligned report with curl-based PoC for each finding and remediation guidance.

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Praveen Kumar

max

• Jun 11

Build the website whose conversion rates are through the roof! Attracting Millions of organic traffic, all thanks to the well optimized SEO. The website is small and to the point when it comes to conversion. Meet Hex Security, a YC backed cybersecurity company.

Here's a small case study:

MD Rafee Alam

• Jun 11

The restrained approach for a cybersecurity brand makes sense. SEO-focused landing pages for YC companies tend to work best when the copy does the heavy lifting, not the visuals. Curious how the conversion rate compares before and after.

Chahid Marghiche

• Jun 13

Hookrelay: reliable webhook relay.

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Daniel Faustino

• Jun 13

RiskClearAI - AI-Powered Contract Review Platform RiskClearAI is a SaaS platform that analyzes construction contracts using AI to identify risks, missing clauses and compliance issues. The platform processes uploaded contracts, extracts clauses, classifies risk categories and generates actionable insights to help contractors make informed decisions before signing agreements.