Security is a posture, not a product.
3Columns is an end-to-end cyber security firm for Australia and New Zealand. We design your security, test that it holds under pressure, and govern it as your business grows.
Strong security stands on three columns.
Build it in from the start.
Architecture, cloud and configuration engineered so security is part of the foundation, never bolted on afterwards. We build environments that are hard to break by default.
Prove it holds under pressure.
We test your defences the way a real adversary would, then give you a prioritised, plain-English plan to close every gap we find. No jargon, no scare tactics.
Stay compliant, stay in control.
The frameworks, policies and leadership to meet your obligations and keep meeting them as you grow. We turn compliance from a checkbox exercise into something your board actually understands.
There is no single solution for adequate cyber safety. Real resilience comes from getting three things right at the same time.
Sydney & Auckland
threat monitoring
under one roof
& technology
Small business
Enterprise-grade protection scaled to your size and budget, without the cost of a full in-house security team.
- Essential Eight uplift
- Managed SOC & email security
- Security awareness training
Enterprise
Deep, multi-disciplined assurance and governance that scales across complex environments.
- Red teaming & pen testing
- ISO 27001 & SOC uplift
- Virtual CISO
Government
Compliance-first security aligned to ACSC and government frameworks, delivered locally.
- Essential Eight compliance
- Third-party & supply-chain risk
- Secure cloud architecture
A 24/7 security operations centre, watching your environment so your team can focus on the business.
See where you're exposed before someone else does.
Everything you need, from one team.
Our capabilities span the full security lifecycle. They are built around Design, Assure and Govern, plus the cloud, identity and managed services that hold them together.
From first design review to round-the-clock defence, run by one accountable team.
Test your defences before an attacker does.
We probe your environment the way a real adversary would, then hand you a prioritised path to fix what we find.
Certify, comply and stay audit-ready.
Meet your obligations and build the policies, training and leadership to keep meeting them.
Engineer security into the foundations.
Architecture, monitoring and configuration built to hold up under real-world pressure.
Not sure which service you need? Start with a conversation.
Talk to a specialist →Security shaped to your organisation.
A boutique's attention with an enterprise's depth. Whatever your size or sector, we right-size protection to your risk, obligations and budget.
Enterprise-grade protection, scaled to you.
You don't need a full security team to be secure. We give smaller organisations the essentials that stop the most common attacks, all managed, monitored and priced to fit.
Essential Eight uplift
Close the gaps the ACSC says matter most, at a maturity level that fits.
Managed SOC & email security
24/7 monitoring and phishing defence without hiring or tooling it yourself.
Depth and rigour across complex environments.
For organisations with real complexity, we bring multi-disciplined assurance and governance that stands up to boards, auditors and adversaries alike.
Red teaming & penetration testing
Adversary-grade testing across applications, networks, cloud and people.
ISO 27001, SOC uplift & vCISO
Certification, detection maturity and security leadership on tap.
Compliance-first, delivered locally.
Teams in Sydney and Auckland who work to ACSC and government frameworks every day, with the assurance and documentation the public sector demands.
Essential Eight compliance
Assessment, uplift and evidence aligned to ACSC maturity requirements.
Third-party & supply-chain risk
Assess and monitor the vendors that extend your attack surface.
Let's talk about your sector.
Cyber security for every business.
3Columns helps organisations identify their security gaps and protect what matters most. We are an end-to-end cyber security firm spanning Australia and New Zealand.
Why we're built on three columns.
Real resilience comes from getting three things right together: designing security in, assuring that it works, and governing it over time, across people, process and technology.
That belief is in our name, and in our logo. Rather than sell you a product, we complement your in-house team with bespoke, multi-disciplined expertise. You get 360° protection across hybrid and cloud environments, without the blind spots that come from stitching vendors together.
Clarity over jargon
Findings you can act on and explain to your board, not a PDF that gathers dust.
Partnership, not projects
Available, invested and in it for the long term. We work as an extension of your team.
Local accountability
Real people in Sydney and Auckland who own the outcome, end to end.
Suite 502, Level 5, 262 Pitt Street
Sydney NSW 2000
Book a free security assessment.
Tell us a little about your organisation and what you're trying to protect. A specialist will get back to you, usually within one business day.