Cybersecurity Services
Cybersecurity consultancy that starts with what you actually need.
Cliffside is a Sydney-based cybersecurity consultancy that provides assessment-first security services to organisations across Australia. We assess your real security posture, tell you what genuinely needs fixing, and build a programme around your risk profile, regulatory obligations, and budget. If something does not need doing, we will tell you.
Cybersecurity consultancy
What does a cybersecurity consultant do?
A cybersecurity consultant provides independent security expertise to organisations that need specialist capability without building a permanent in-house team. This includes security risk assessment, security design, compliance advisory, penetration testing, and ongoing security programme management. Unlike physical security consultants who focus on premises and personnel, cybersecurity security consultants address the digital risk landscape -- from network architecture and cloud security to governance frameworks and incident response planning.
At Cliffside, our senior security consultants start every engagement with an honest assessment of your current security posture. We conduct security risk assessments to identify where your genuine exposures are, then provide independent security advice on what to fix first. We do not sell products that happen to match our diagnosis. If your organisation needs a security audit, we tell you. If it needs awareness training instead, we tell you that too -- even when the audit is the higher-margin engagement.
What our cybersecurity services cover
Six practice areas across strategy, compliance, testing, cloud, managed services, and secure automation. Every engagement starts with honest assessment and ends with a clear, defensible security position.
When a product is the right answer, we recommend and deliver it. When it is not, we say so and propose a fit-for-purpose alternative. Practitioner-led cybersecurity consulting services designed to improve your actual security posture, not just your compliance paperwork. Explore our detailed guides on ISO 27001 certification, cybersecurity audits for business, and third-party security risk management.
Strategy and architecture →
Security programmes fail when they start with tools instead of strategy. We provide security design aligned to your business risk -- from network architecture to identity frameworks -- plus virtual CISO leadership and governance structures that boards can actually use.
Compliance and audits →
ISO 27001, APRA CPS 234, Essential Eight, NIST CSF: we navigate these frameworks because we live inside them. Cliffside holds its own ISO 27001 certification and has since 2008. We know the difference between passing an audit and being genuinely secure.
Security testing and assurance →
Our OSCP, OSWE, OSCE, and CREST-certified testers find real weaknesses before attackers do. Penetration testing, web application testing, wireless assessments, breach simulation, and social engineering — calibrated to your actual risk.
Cloud security →
AWS and Azure specialists. Microsoft partner for M365 security, Defender, Intune, and Entra ID. We design cloud security from day one, not bolt it on after migration.
Managed security services →
Continuous security without the continuous overhead. Managed SOC, ongoing security awareness programmes, and third-party risk management for organisations that need capabilities working between assessments.
Secure AI and automation →
Automate business processes that handle sensitive data with security built in, human approval gates, and an AI-first approach. If your organisation is adopting AI, do it with controls that stand up to scrutiny.
Why organisations choose Cliffside over larger cybersecurity consultancies
Large firms promise senior expertise in the pitch, then staff engagements with junior consultants. They diagnose problems that conveniently match their product catalogue. Cliffside was founded in 2014 to be the opposite of that model.
Assessment first, every time
Every engagement begins with an honest, independent security assessment of where you stand. Our security assessment is vendor-neutral, transferable, and designed to give you a clear picture of your security posture. You can take the findings to any provider. There is no lock-in.
We tell you what you do not need
If your environment does not require a particular service, we will say so. If the problem is awareness training rather than a penetration test, that is what we recommend, even when the pen test is the higher-margin engagement. Our reputation depends on being right, not being busy.
Senior practitioners, not presenters
When you engage Cliffside, the people in the room are the people doing the work. CISSP, SABSA, CISA-qualified consultants with decades of experience across energy, financial services, government, and critical infrastructure. No bait-and-switch.
ISO 27001 certified ourselves
We do not just advise on ISO 27001. We hold our own certification under ISO/IEC 27001:2022. That means we practice what we recommend, and we understand the practical realities of maintaining an ISMS, not just the theory of building one.
Who we work with
Cybersecurity consulting services for mid-to-large Australian organisations across regulated and high-risk sectors. Headquartered in Sydney with national delivery, including on-site work in Melbourne, Brisbane, Canberra, Perth, and Adelaide.
Financial services
APRA-regulated entities that need CPS 234 compliance, board-ready reporting, and security programmes that satisfy both the regulator and the business. We also work with insurance and financial sector organisations managing evolving cyber risk.
Government
Commonwealth, state, and local government agencies navigating Essential Eight maturity requirements, ISM obligations, and the practical challenge of securing complex, legacy-heavy environments. Read more about our cybersecurity services for government.
Energy and critical infrastructure
Organisations where security failures have real-world consequences, including energy, utilities, and healthcare. Security architectures designed for operational technology environments, not just corporate IT.
Professional services and mid-market
Growing organisations that need structured security programmes but cannot justify a full-time security team. Virtual CISO engagements, compliance roadmaps, and ongoing advisory.
Cybersecurity services built for Australian regulatory reality
Australian organisations face a specific regulatory landscape that generic, international cybersecurity advice does not address. The ASD Essential Eight, APRA CPS 234, the Privacy Act, the Security of Critical Infrastructure Act, and state-level requirements like the NSW Cyber Security Policy all create obligations that require local expertise and practical, evidence-led implementation.
Cliffside has operated from Sydney since 2014, serving clients from Canberra government agencies to Perth-based resources companies. We understand how APRA examines CPS 234 compliance in practice. We know what Essential Eight maturity level 3 actually takes to achieve. We have helped organisations prepare for and respond to notifiable data breaches under the Privacy Act.
Australian cybersecurity regulation is the core of what we do, and every consultant on our team works within it daily.
Start with an honest assessment.
Our security assessment is the fastest way to understand where you stand and what to prioritise. Vendor-neutral, transferable, and typically completed within two to four weeks.
Frequently asked questions.
What does a cybersecurity consultancy actually do?
How is Cliffside different from larger cybersecurity firms?
What industries does Cliffside work with?
What is a security assessment?
Does Cliffside work with organisations outside Sydney?
Is Cliffside ISO 27001 certified?
Ready to talk?
Book a free security assessment. Honest, transferable, no lock-in.