Detect flaws at the code level

Bugs don’t always live in the interface. We go behind the scenes to inspect your code for logic flaws, backdoors, and insecure development practices.

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Source Code Review

An in-depth source code review can uncover critical security issues

We start by scanning your application’s code using automated tools, followed by manual review from one of our consultants. This identifies common coding mistakes, backdoors and security flaws. Our team has experience across a wide range of languages and frameworks.

Identify critical flaws before attackers do
Improve code quality by enforcing secure coding practices
Deliver clear, actionable reporting to help you fix issues fast

Service detail

Review your most critical applications

Concerned about vulnerabilities lurking in your application code? Our code review goes deeper to uncover issues early and improve the security of your most important systems. By combining expert analysis with secure development best practices, we help you harden your applications and reduce exposure.

Find the flaws in your application before attackers do

We go deeper than what automated tools can find. Our consultants review your application’s logic, data flow and implementation details to uncover both common and subtle flaws that static scanners often miss.

Detect OWASP Top Ten issues like SQL injection, logic flaws and XSS
Review authentication, authorisation and session management
Get tailored remediation guidance aligned to your app stack and coding standards

Our delivery process

How is it delivered

We help identify security issues in the source code of an application before it goes live in your production environment. Our review covers data handling, validation, access management, and error handling.

Scope and prepare

We work closely with your team to understand the application’s architecture.

Review

We review the application’s source code using the OWASP Code Review Project as a foundation.

Report and remediate

You’ll receive a clear, prioritised report with findings, impact ratings, and practical steps to help you secure your application.

Benefits

Why work with us

We go beyond simply identifying vulnerabilities. Our reviews uncover deeper issues and help your team fix them effectively. With context-aware analysis tailored to your application, we ensure results.

Development backgrounds

Our reviewers are also experienced developers. This means they understand the intent behind the code, not just how to break it.

Tailored reviews

We combine automated tools with hands-on review, customising our approach to suit your architecture, development style, and risk profile.

Actionable reports

You’ll get more than just a list of issues. We provide detailed findings with impact descriptions, exploitation scenarios, and clear guidance.

What comes next

Expand your security coverage

Your source code review is just the start. We’ll help you take the next steps, whether that means fixing vulnerabilities, validating changes, or building long-term resilience into your development lifecycle.

Plan remediation with practical, developer-friendly guidance
Validate fixes with retesting or follow-up reviews
Strengthen your SDLC with secure coding workshops or pipeline reviews

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Executive and Board Security Governance Training

We train executives and boards on their cybersecurity oversight role — focusing on risk framing, accountability, and key governance responsibilities.

Advanced OSINT Training Course

This hands-on course teaches advanced open-source intelligence techniques, tools, and tradecraft for investigations, threat profiling, and situational awareness

Frequently asked questions

From risk assessment to rapid response - we’re with you every step of the way.

What is a source code review?

A source code review is a manual inspection of your application’s codebase to identify logic flaws, insecure coding practices, and vulnerabilities such as SQL injection, XSS and authentication issues - before they can be exploited.

How is a manual code review different from automated scanning?

Manual code reviews go beyond what automated tools can find. They uncover complex business logic issues, insecure error handling, and implementation flaws that scanners often miss - helping you strengthen your application at its core.

When should I perform a source code review?

A code review is ideal before a major release, after integrating new modules, or as part of your secure SDLC. Reviewing your code early helps reduce costly fixes, improve quality, and lower your exposure to cyber risk.

What types of issues can be identified in a code review?

Our reviews detect OWASP Top Ten issues like SQL injection, XSS, and insecure session handling, as well as business logic flaws, insecure data flows, and hardcoded secrets that may compromise your application.

Will I receive guidance on how to fix the issues found?

Yes. Bastion provides a clear, actionable report with remediation advice tailored to your application stack and development standards - helping your developers fix issues quickly and avoid them in future builds.