Source Code Review

The flaws scanners cannot see live in business logic. A human reads your code and finds them.

Why this matters: Scanners find known patterns; they cannot tell that your refund function trusts a client-side total. Manual review catches the logic flaws, subtle injection sinks, and authentication mistakes that only make sense with the code in front of you — and the fixes land faster because the reviewer points at the line.

What we cover

Business-logic flaws and trust-boundary violations
Injection sinks: SQL, command, template, and deserialization paths
Authentication and session-handling implementation review
Cryptography misuse: weak primitives, hardcoded keys, poor randomness
Secrets and credentials left in code and configuration
Framework and dependency misuse patterns

How we test

1Scope & architecture

We map the codebase structure, frameworks, and trust boundaries before reading line by line.

2Guided review

Priority paths first: auth, payments, file handling, admin functions — where flaws matter most.

3Triage & verify

Candidate findings confirmed by trace and, where useful, a runtime proof of concept.

4Report & walkthrough

Findings referenced to exact files and lines, with fix guidance and a walkthrough call for your team.

What you get

Line-referenced findings with severity and exploitability
Logic flaws automated tools cannot classify
Fix guidance written for the developer who will make the change
A walkthrough session with your engineering team

The engagement at a glance

📞 Free scoping call

A short conversation about your environment. You receive a written scope, timeline, and fixed quote — no obligation.

✍️ Signed authorization

Testing begins only with your written permission and agreed rules of engagement. Always.

⏱️ Time-boxed delivery

A calendar agreed before we start, with an agreed communication plan while testing runs.

🔁 Retest included

A verification pass over everything you fix — included in the price, not an add-on.

See the full engagement process → and how pricing is scoped in our public pricing guide.

Related research from Hmmnm

Error-based exploitation and mitigation (SQLi, SSTI)hmmnm.com Cross-Site Scripting (XSS): the complete tutorialhmmnm.com Web App Pentesting — the complete guidehmmnm.com

Common questions

Which languages can you review?

The common web stacks — PHP, Java, JavaScript/TypeScript, Python, C#/.NET — plus configuration and infrastructure code. We will tell you honestly in the scoping call if your stack is not a fit.

Do you replace SAST tools?

No — you keep the scanner for known patterns; we review for what scanners cannot reason about. Together they cover far more than either alone.

Can you review just one critical component?

Yes, and that is often the smart start: the payment flow, the auth module, or the admin panel — highest value per hour of review.

Authorization first, always. Testing happens only with your written permission and agreed rules of engagement — the same ethics that govern responsible disclosure on this site.

Explore other services 🌐 Web Application Penetration Testing 🤖 AI & LLM Security Assessment ☁️ Cloud & Identity Security Review 🔗 Software Supply Chain Security Assessment 📡 Threat Intelligence & Detection Review 🎓 Security Training & Workshops 🖥️ Network Penetration Testing 📱 Mobile App Security Testing 🎯 Red Team Simulation 🤝 Purple Team Exercise 🎣 Phishing Simulation 🔍 Attack Surface Review 🕵️ Breach Exposure Check 🚨 Compromise Check 🚑 Incident Response Support 🛟 Ransomware Readiness Check 👔 Virtual CISO 📊 Security Maturity Check 🔑 Password Strength Audit 📋 Compliance Readiness 🧬 API Security Testing 🧱 Zero Trust Assessment 🏬 Third-Party Risk Assessment 🐞 Bug Bounty Support 🔬 Security Research Services 🎤 Campus & Corporate Seminars 🌱 Security Internship Program \U0001F9E9 Threat Modeling

Want this assessed for your environment?

A short scoping conversation is enough to get a fixed quote. No obligation — a researcher replies.

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