Source Code Security Audit & Secure Code Review

Dr. Vinay Grover

White-Box Application Security

Source Code Security Audit & Secure Code Review

Penetration testing shows what an attacker can reach from outside. A source code security audit shows why: the missing authorisation check, the raw SQL query, the API key committed two years ago. Reading the code finds whole classes of flaws faster than testing the running application alone.

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Mutual NDA before scoping
Non-destructive testing
Free retest after fixes

What this covers

Source Code Security Audit

Typical timeline

Depends on code size and languages; a typical mid-sized application takes one to three weeks, with critical findings shared as soon as they are confirmed.

Who it is for

Who our Source Code Security Audit service is for

We combine static analysis (SAST), dependency and secrets scanning with manual review by engineers who build software for a living. Automated tools flag candidates; people confirm what is exploitable, remove false positives and explain each fix at file and line level. Reviews follow the OWASP Application Security Verification Standard (ASVS) and can be paired with a penetration test for a full white-box assessment.

Discuss your requirement

01
SaaS and fintech teams preparing for enterprise customer or bank security reviews
02
Companies taking over code written by an agency or a developer who has left
03
Investors and acquirers running technical due diligence on a software product
04
Engineering teams that want security checks built into their pull requests

Capabilities

What is included in Source Code Security Audit

Authentication & authorisation review

Injection & input handling

SQL, NoSQL, command and template injection, unsafe deserialisation, file upload handling and output encoding.

Secrets & configuration

API keys, passwords and certificates committed to the repository or its history, and insecure default settings.

Dependency & licence risk (SCA)

Open-source libraries with known CVEs, abandoned packages and licence conflicts, with upgrade paths.

Cryptography & data protection

Hashing, encryption and key management, plus how personal data is stored, logged and masked.

Secure SDLC & CI integration

Tuned Semgrep or SonarQube rules and secret scanning in your CI pipeline so new issues are caught at pull request.

How we work

A clear, step-by-step delivery process

You always know what happens next, who is responsible and what you will receive at each stage.

Typical timeline

Depends on code size and languages; a typical mid-sized application takes one to three weeks, with critical findings shared as soon as they are confirmed.

01

Scoping & NDA

Assets, roles, test windows and rules of engagement are agreed in writing.
02

Reconnaissance

We map the attack surface: endpoints, parameters, integrations and exposed services.
03

Manual testing

Hands-on exploitation of logic, access control and injection flaws, backed by tooling.
04

Reporting

CVSS-scored findings with proof, business impact and step-by-step fixes.
05

Retest & closure

Fixes are verified and a closure report is issued for auditors and clients.

Deliverables

What you receive

Findings report with file and line references
Severity ratings with CVSS and CWE mapping
Fix guidance with secure code examples
Dependency upgrade and secrets rotation list
Developer walkthrough session
Re-review of fixed code

Standards & tools

Tools we work with

OWASP ASVSOWASP Top 10SemgrepSonarQubeGitleaksOWASP Dependency-CheckTrivyCWE / CVSS v3.1

We recommend tools based on your scale, budget and existing systems, not on what is fashionable. Every choice is explained in the proposal.

Engagement models

Choose how we work together

One-time assessment

A scoped test with a severity-rated report, developer walkthrough and one free retest after you fix the findings.

Most chosen

Compliance programme

Gap assessment, policy and control implementation, evidence collection and audit support across a fixed timeline.

Continuous security

Quarterly testing, release-based retests and on-call advisory for teams that ship often.

How pricing works: Security work is priced on scope: number of applications, APIs, user roles, IPs or cloud accounts. You get a fixed quote after a short scoping call. Company audits start at ₹25,000.

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FAQs

Source Code Security Audit: frequently asked questions

How do you handle our source code securely?

An NDA is signed before scoping. We work from read-only repository access or an encrypted archive on access-controlled machines, never copy code to third-party services, and delete all copies when the engagement closes.

Is an automated code scanner not enough?

Scanners are useful but noisy. They report many false positives and miss logic flaws such as a missing permission check, which are often the most serious issues. Manual review confirms what is real and explains how to fix it.

Which languages and frameworks do you review?

PHP and Laravel, JavaScript and TypeScript (Node.js, React, Next.js), Python (Django, FastAPI), Java and Spring, .NET, and mobile code in Kotlin, Swift, Flutter and React Native.

Should we choose code review or penetration testing?

For critical applications, both. Code review finds root causes and issues hidden from the outside; penetration testing proves what is exploitable in the deployed system. Combined, they form a white-box assessment that finds more in less time.

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