Lachlan Harris

Fortify your systems. Fund a humanitarian mission.

Developer-focused security assessments with practical, affordable and fast remediation guidance. 50% of my fee supports our school's* Cambodia Service Tour.

Security for builders.

I work with developers and small teams to secure what you ship — from static sites to login-based apps — with actionable fixes and minimal noise.

It’s a professional, industry-grade service. And because I care about impact, I donate 50% of every engagement to our school's Cambodia Service Tour.


*Due to school policy, the name isn't listed publicly. However, it can be confirmed & verified upon request.

What's included

Web Application Security Audit

Passive and active recon

OWASP Top 10 vulnerability checks

Credential and input handling review

Industry-grade Report

Executive summary

Technical findings & CVSS scoring

Remediation advice for both technical & non-technical clients

Professional documentation

Every engagement is governed by a formal Rules of Engagement agreement. This protects both of us and ensures ethical, responsible testing. Preview the document here.

Your report provides clear, actionable steps for remediation, along with verbose technical reports on all key findings.

Human impact

50% of my fee funds construction materials and essential supplies for families in rural Cambodia.

You'll receive a confirmation + photo follow-up post-tour.

I'll share a confirmation of the contribution after your engagement.

Services and pricing

Offensive security

$300 AUD

Hands-on testing to find exploitable risks before attackers do.

Passive & active recon

OWASP Top 10 checks and manual testing

Targeted penetration testing of in-scope areas

Developer-ready report with prioritized fixes

Defensive hardening

$150 AUD

Review and hardening to reduce attack surface and cost of fixes.

Exposure checks and dependency audit

Secrets/config review (env, headers, CSP)

Secure defaults and hardening checklist

Optional code-level review (scoped)

Custom quote

Let’s tailor a plan

Perfect for larger scopes, recurring assessments, or mixed offensive/defensive work.

Third-party integrations and SSO

Internal workflows and CI/CD

Secure setup and configuration

Recurring assessments

How it works

1

Request a service

We'll define clear Rules of Engagement and determine exactly what you want tested. No tech knowledge required.

2

Confirm booking

We’ll confirm scope, timelines, and pricing. I donate 50% of my fee to the Cambodia Service Tour.

3

I get to work

The assessment begins. I'll comprehensively test the security of your site based on the defined scope.

4

Receive your findings

You'll be provided a clear, actionable report with prioritised recommendations. No fluff, no jargon walls.

FAQ

How will we define the Rules Of Engagement?

After you reach out, we'll have a discussion to clarify your needs and expectations. Then, I'll draft a clear Rules of Engagement document for you to review and sign. This ensures we're on the same page before any testing begins.

You can preview the document here.

Where does the money go exactly?

I donate 50% of my fee from each engagement to my school's Cambodia humanitarian trip. You’ll receive a confirmation once it’s made.

What do I get in return?

A practical security assessment and developer-ready report detailing vulnerabilities, impact, and how to fix them — fast.

Are you qualified to do this?

Yes. I've passed the eJPT (Junior Penetration Tester certification), and regularly complete CTFs and real-world assessments. You can verify my credentials & education on my LinkedIn.

What do you get out of it?

I gain real-world experience, portfolio material, testimonials, and the chance to build something bigger than just a school fundraiser.

What kind of sites or systems do you test?

Right now, I focus on public-facing websites and basic web applications. If you're not sure what category you fall into, just ask.

Ship safer, faster. Let’s talk

I’m taking on limited clients. Lock in your assessment below.