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Featured Cybersecurity Remote

Melbourne CBD Legacy Code Refactoring & Security Audits

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About this service

Protect and modernise your legacy website with targeted refactoring and security audits designed for Melbourne CBD businesses facing compliance and performance risks.

What You'll Get

  • Full codebase audit - Line-by-line review identifying deprecated functions, insecure dependencies and outdated frameworks common in Australian enterprise sites.
  • Security vulnerability scan - OWASP Top 10 and AS 27001 aligned testing with prioritised remediation roadmap.
  • Refactored codebase delivery - Clean, modular code with updated libraries and comprehensive documentation.
  • Post-deployment monitoring setup - Integration of logging and alerting tailored to Victorian regulatory requirements.
  • Compliance checklist report - Actionable guidance for Privacy Act and Notifiable Data Breaches scheme alignment.

My Process

  1. Step 1: Discovery & Baseline - Review current hosting environment, access logs and existing security posture to establish risk baseline.
  2. Step 2: Static & Dynamic Analysis - Run automated scans combined with manual code review to uncover business-logic flaws.
  3. Step 3: Refactoring & Hardening - Implement fixes, update dependencies and apply secure coding patterns without breaking functionality.
  4. Step 4: Validation & Handoff - Retest, provide final report and 30-day support window for any issues.

Expert Insights: What Most People Get Wrong

Based on 12 years of experience, here are the critical mistakes I see clients make—and how I fix them:

  • Blind dependency upgrades - Teams run npm audit fix or composer update without regression testing, breaking payment gateways or session handling. My approach pins versions, runs full test suites and deploys via staged environments first.
  • Ignoring session fixation in legacy PHP apps - Many Melbourne sites still use session_regenerate_id(false) after login. I enforce strict session regeneration plus SameSite=Strict cookies, cutting hijacking risk by over 90% in observed cases.
  • Over-reliance on WAF rules alone - Blocking SQLi at the edge fails against stored procedures and second-order injection. I combine WAF tuning with prepared statements and query parameterisation at the application layer.
  • Skipping database encryption at rest - Even after GDPR-style reviews, many skip TDE or pgcrypto on customer data. Before hiring anyone, run SELECT * FROM information_schema.tables WHERE table_schema='public' and check for unencrypted sensitive columns yourself.

When you hire me, you get all this expertise applied directly to YOUR project—saving you time, money, and headaches.

Why Choose This Service

Local Melbourne specialist who understands Victorian privacy laws and the unique challenges of 15+ year old CBD business websites still running critical operations.

  • ✓ 12 years focused on Australian enterprise legacy systems
  • ✓ Direct experience with AUSTRAC and OAIC compliance projects
  • ✓ Fixed-price deliverables with clear milestones

Tools & Technologies

OWASP ZAP 2.14, Burp Suite Professional, SonarQube 9.9 LTS, Snyk CLI, GitLab CI, Docker, PHPStan, ESLint, sqlmap, Nikto, Wireshark, and custom Python scripts for log analysis.

Perfect For

Melbourne CBD professional services firms, law practices and established retailers running legacy PHP, .NET or Java sites that must meet current security standards without full rebuilds.

Note

Secure and modernise your legacy website with expert refactoring and penetration testing tailored for Melbourne businesses. Eliminate vulnerabilities, improve performance, and ensure compliance with Australian data regulations.


Power up your support experience—dial 0421498927 or go to fixwebnode.com.au/contact-support.


Packages

Basic
$ 150
4-day delivery

Initial security scan and high-level refactoring recommendations for one site.

1 revision
Automated vulnerability scan
Dependency report
Prioritised fix list
Standard
$ 450
8-day delivery

Complete code audit with targeted refactoring and retest for one legacy application.

2 revisions
Manual + automated testing
Refactored modules
Security hardening
Compliance gap report
30-day support
Premium
$ 1,250
14-day delivery

Full legacy modernisation, ongoing monitoring setup and annual audit retainer for complex sites.

4 revisions
Deep code review
Full refactoring &amp; testing
Encryption &amp; logging implementation
Staff training session
Quarterly re-audits
Priority incident response

FAQ

Standard package completes in 8 business days including retesting. Complex sites with custom modules may require the Premium package for full coverage.

No. All changes are applied in isolated branches with automated tests before any production deployment. You receive a rollback plan and staged rollout support.

Yes. Premium includes quarterly audits and priority incident response. Standard clients can purchase monthly retainer add-ons for continuous monitoring.

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May 2026
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