Identify logic flaws hidden in your codebase

Go beyond surface-level testing with code-level reviews that expose insecure logic and hidden backdoors.

Source Code Review

Dive deep into your code to find hidden security gaps

Our secure code review service blends automated scanning with expert manual analysis to uncover vulnerabilities before they can be exploited. We assess your application for insecure patterns, logic flaws and potential backdoors — across the most commonly used development languages and frameworks.

Detect security issues early in the development lifecycle
Promote secure coding habits across your engineering team
Receive detailed, developer-friendly reports with clear fixes

Service detail

Review your most critical applications

Worried about hidden flaws in your code? Our in-depth code reviews spot issues early, applying secure development standards to help you strengthen key applications and limit risk.

Deep dive into your app’s defences.

Deeper than scans – smarter than checklists. Our testers step into the attacker’s shoes to find vulnerabilities tools overlook – from business logic to backend flows.

Spot flaws beyond the OWASP Top 10
Examine session flows, privilege escalation paths and more
Provide custom remediation advice you can actually use

Our delivery process

How is it delivered

Our code review service detects vulnerabilities early in development by examining how your application handles data, authentication, and error responses.

Scope and prepare

We collaborate with your team to gain a clear understanding of the application’s structure and technical design.

Review

We assess your source code based on OWASP Code Review standards to detect common security flaws and weaknesses.

Report and remediate

Our final report presents your application’s key risks, impact ratings, and straightforward recommendations to tighten its security posture.

Benefits

Why work with us

More than just surface-level findings, our reviews dig into the underlying issues and guide your team through effective fixes. By tailoring our analysis to your app’s context, we deliver results you can act on.

Development backgrounds

Our code reviewers are seasoned developers themselves—so they grasp the purpose behind your code, not just how to exploit it.

Tailored reviews

Our methodology combines automated scanning with expert-led review, ensuring our assessment fits your application’s design, development workflow, and risk priorities.

Actionable reports

We go beyond identifying issues. You get in-depth insights, including potential attack scenarios, the business impact, and step-by-step advice to address them.

What comes next

Expand your security coverage

Your code review lays the foundation—but it's what comes next that truly strengthens security. We’ll support your team with clear, actionable guidance to fix issues, confirm improvements, and embed secure practices throughout your development process.

Remediate identified vulnerabilities with developer-focused support
Confirm risk reduction through targeted retesting or follow-up reviews
Improve long-term security with workshops and CI/CD pipeline enhancements

Talk to an expert

Web Filter, CASB & DLP (Cloud Access Security Broker & Data Loss Prevention)

Monitor and manage how users interact with cloud, web, and AI platforms — including movement of sensitive data.

Web Application Penetration Testing

Uncover hidden flaws in your web apps — from session handling to access controls — through in-depth security reviews.

Frequently asked questions

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

Do you provide remediation advice with your findings?

Yes. Cythera delivers a clear report tailored to your tech stack and development practices - helping your developers prioritise and fix issues quickly, and avoid repeating them in future builds.

What is a source code review?

This is a detailed manual review of your application's source code to uncover insecure coding patterns, logic flaws, or vulnerabilities like SQL injection, cross-site scripting, or weak authentication. It strengthens application security from the inside out

What issues can be identified in a code review?

We conduct detailed reviews to uncover critical vulnerabilities covering OWASP Top Ten risks (e.g., XSS, SQL injection, insecure sessions) along with hardcoded credentials, weak logic, and flawed data flows that could undermine your application's security.

What's the difference between manual code review and automated scans?

Manual reviews detect what automated tools often miss like logic flaws, weak error handling, and subtle implementation issues making your application stronger and more secure at its foundation.

When is the right time to review application source code?

Security code reviews are most effective when done before major releases, after new modules are integrated, or during development. They help prevent vulnerabilities, improve quality, and avoid costly fixes down the line.