Comprehensive VAPT Security Audit Checklist for FinTech & SaaS Startups

Essential vulnerability assessment and penetration testing (VAPT) framework to protect user data, comply with regulatory standards, and pass enterprise security reviews.

Verve Nova Technologies

Software Engineering & Cloud Architecture

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Why Security Audits Are Mandatory for High-Growth Startups

In modern B2B SaaS and consumer FinTech, a single security vulnerability can cause devastating financial loss, regulatory penalties from data protection authorities, and catastrophic brand damage. Furthermore, enterprise procurement teams will not sign contracts without verified **VAPT (Vulnerability Assessment and Penetration Testing)** reports.

At **Verve Nova Technologies**, our security specialists conduct rigorous black-box, white-box, and grey-box audits. Here is our primary audit checklist.

1. Authentication & Session Security (OWASP A01 & A07)

**Brute-Force & Rate Limiting**: All login, registration, and OTP endpoints must enforce strict IP and user-based throttling (e.g. maximum 5 failed attempts per 15 minutes).

**JWT Token Invalidation**: Ensure access tokens expire within 15 minutes and refresh tokens are stored in secure, `HttpOnly`, `SameSite=Strict` cookies.

**Privilege Escalation (BOLA/IDOR)**: Test that user `A` cannot read or mutate tenant `B`'s invoices simply by altering the UUID parameter in the URL.

2. API Security & Injection Defense (OWASP A03)

**Parameterized SQL Queries**: Ensure zero raw string concatenation in database queries. Use modern ORMs (Prisma, Mongoose, TypeORM) or prepared statements.

**Strict Input Sanitization**: Reject unexpected payload fields and validate incoming JSON schemas using libraries like Zod or Joi.

**CORS Configuration**: Never use `Access-Control-Allow-Origin: *` on authenticated API gateways. Whitelist strictly verified client origins.

3. Cryptography & Data in Transit (OWASP A02)

**Transport Layer Security (TLS)**: Enforce TLS 1.3 exclusively. Deprecate legacy TLS 1.0 and 1.1 ciphers across all load balancers.

**Data at Rest Encryption**: Ensure AWS RDS, S3 buckets, and Redis clusters have AES-256 KMS key encryption enabled.

Summary: Preparing for Your Formal Audit

Before engaging an external auditor, execute automated static code analysis (SAST) in your CI/CD pipeline and run automated dependency vulnerability scanning using tools like Snyk or GitHub Dependabot.

*Need an accredited VAPT audit or security posture assessment? Partner with Verve Nova Technologies.*

Topic Tags

VAPTCybersecurityOWASP Top 10Penetration TestingCompliance

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