The short version

A security and data protection expert helps a business protect its systems and data: assessing risk, building defences and controls, meeting privacy and security obligations, and responding when something goes wrong. Hiring one on a project basis gives you specialist expertise to strengthen security and protect data, without a permanent hire.

• Typical engagement: a security assessment, uplift, compliance, or data protection project
• Day rates in Australia: A$1,200 to A$2,200/day depending on seniority and specialism
• Common focus areas: security risk, controls, privacy, compliance, incident response, data governance
• Hire one when: security is weak, privacy obligations apply, or you've had an incident
• Time to deploy: Curated shortlists in 48 hours via Expert360
• Engagement types: Project-based, contract, or advisory

What is a security and data protection expert?

A security and data protection expert helps a business protect its information and systems from threats, and meet its obligations around how it handles personal and sensitive data. The two sides are closely linked: keeping data secure is central to protecting it. They assess where a business is exposed, design and strengthen the controls that defend it, build the practices that meet privacy and security obligations, and help the business respond if there's a breach. The aim is a business that is genuinely harder to compromise and handles data responsibly.

In Australia, businesses bring in these experts when security is weak or untested, when privacy and data protection obligations apply and need to be met, when a framework or certification such as ISO 27001 is needed, or when a breach or incident has occurred or come close. The environment has sharpened considerably, with reform to the Privacy Act, the Notifiable Data Breaches scheme requiring disclosure of eligible breaches, the ACSC Essential Eight as a baseline, and rising customer and board expectations. Many experienced practitioners work independently, which lets a business access deep security and privacy expertise for a project rather than a permanent hire.

The title sits among several related roles:

• Security and data protection expert: spans security and the protection of data and privacy
• Cyber security engineer: builds and operates technical security defences
• Penetration tester: tests defences by attempting to break in
• GRC consultant: brings governance, risk, and compliance together, including security

When you describe the problem, Expert360 helps you work out whether you need a broad security and data protection expert, a hands-on cyber security engineer, or a penetration tester.

When should you hire a security and data protection expert?

Most businesses bring in a security and data protection expert when protecting systems and data has become something they can't leave to chance. The clearest signals:

• Security is weak or untested. You're not confident your defences would hold, and you want them assessed and strengthened.
• Privacy obligations apply. You handle personal or sensitive data and need to meet your obligations under privacy law and the data breach scheme.
• You need a framework or certification. You need to build or certify against a framework such as ISO 27001, the Essential Eight, or SOC 2.
• You've had an incident or near miss. A breach, attack, or close call has shown the business is exposed and needs to respond and strengthen.
• A customer or partner requires it. A major customer, partner, or contract requires you to demonstrate security and data protection.
• You've grown past your setup. The business has scaled and its informal approach to security and data no longer fits the risk it now carries.

If one or more of these is pressing, a security and data protection expert is likely the right move. Talking it through with Expert360 usually clarifies the scope and where the priorities are.

How much does a security and data protection expert cost in Australia?

Rates vary based on seniority, the specialism, and whether the work is an assessment, a full uplift, or specialist incident or architecture work, with scarce security expertise in high demand.

The below rates are indicative only. Experts in our network set their own rates, and you'll be able to compare real rates after requesting a talent shortlist.

Security and data protection expert: A$1,200–A$1,600/day

Typically 10 to 15 years in security or privacy, strong on assessment, controls, and compliance. Suits a defined assessment, uplift, or compliance project.

Senior expert: A$1,600–A$1,900/day

15 to 20 years, comfortable across complex environments and advising leadership. Suits a significant security uplift, a framework programme, or privacy reform readiness.

Principal or lead: A$1,900–A$2,200+/day

20+ years, often advising boards or leading the response to serious incidents. Suits enterprise security strategy, board-level assurance, or major incident response.

Security and data protection work is usually project-based, scoped to an assessment, an uplift, a compliance programme, or an incident, over a few weeks to several months. Scarce specialisms and high-stakes incident response sit at the higher end given the demand and the consequences.

What drives the variance:

• Specialism: scarce, in-demand security expertise commands more
• Stakes: incident response and high-risk environments cost more
• Scope: a full security uplift costs more than a focused assessment
• Seniority: board-level assurance and strategy command more

Our guide to consultant rates in Australia covers what drives cost in more depth.

Security and data protection expert vs cyber security engineer vs GRC consultant: what's the difference?

People weighing this role are usually clarifying whether they need a broad security and privacy advisor, a hands-on technical builder, or the wider governance system. Here's how they separate.

A security and data protection expert spans security and the protection of data and privacy, advising on risk, controls, and compliance. Best when you need both sides covered. Day rates run A$1,200–A$2,200/day.

A cyber security engineer builds and operates the technical defences. Best when you need hands-on technical security work. Day rates run A$1,100–A$1,900/day.

A GRC consultant brings governance, risk, and compliance together as a system, of which security is one part. Best when the wider framework needs work. Day rates run A$1,200–A$2,000/day.

The honest distinction is scope and how hands-on the work is. A security and data protection expert is broad across both security and privacy, and tends to advise and design rather than build at the keyboard. A cyber security engineer is the hands-on technical builder. A GRC consultant is broader still, placing security inside the whole governance picture. On a larger programme these often work together, with the expert setting direction, the engineer building, and GRC framing the governance.

When you describe your situation to Expert360, we help you figure out which of these you actually need before you commit.

What does a security and data protection expert actually do?

The day-to-day varies by the engagement, but most cover some combination of the following.

• Security assessment. They assess where the business is exposed across its systems, data, and practices, and prioritise what matters.
• Controls and defences. They design and strengthen the controls and defences that protect the business, often against a baseline such as the Essential Eight.
• Privacy and data protection. They build the practices that meet privacy obligations and protect personal and sensitive data properly.
• Compliance and frameworks. They build or prepare for frameworks and certifications such as ISO 27001, and meet obligations like the data breach scheme.
• Incident readiness and response. They prepare the business to respond to incidents, and help manage the response when one occurs.
• Awareness and culture. They help build the awareness and practices that make people part of the defence rather than the weak point.

An engagement usually opens with assessing where the business is exposed, moves into strengthening controls, meeting obligations, and building readiness, and leaves the business genuinely harder to compromise and handling data responsibly.

How to choose the right security and data protection expert

The real risk when hiring is rarely whether they know security and privacy frameworks. It's whether they focus on the risks that actually matter to your business and build practical, proportionate protection, rather than either an alarmist over-spend or a box-ticking exercise that leaves you genuinely exposed. Use these criteria to evaluate.

• Risk-led and practical. The best focus on your real risks and build proportionate protection. Be wary of both fear-driven over-selling and box-ticking.
• Right balance of breadth. Confirm their strength matches your need, whether that leans more to security, more to privacy and data, or genuinely both.
• Current threat knowledge. Threats move fast. Confirm they're current on the threat landscape and the relevant Australian obligations.
• Privacy and regulatory fluency. Confirm real familiarity with Australian privacy law, the data breach scheme, and any frameworks you need.
• Builds lasting capability. Confirm they leave the business more secure and more capable, not dependent on them indefinitely.
• References that match your situation. A reference from a similar industry, scale, and risk profile tells you far more than a general endorsement.

Expert360 vets security and data protection experts on risk-led judgement, current threat and privacy knowledge, and practical delivery before they reach your shortlist, so the evaluation starts from a credible base.

Frequently asked questions

What does a security and data protection expert do?

They help a business protect its systems and data, and meet its privacy and security obligations. They assess where the business is exposed, strengthen the controls and defences, build practices that protect personal and sensitive data, prepare for and respond to incidents, and help meet frameworks and obligations such as ISO 27001 and the data breach scheme. The aim is a business genuinely harder to compromise.

How much does a security and data protection expert cost in Australia?

These experts in Australia typically charge A$1,200 to A$2,200 per day depending on seniority, specialism, and scope, with board-level advisory and serious incident response at the higher end. Work is usually project-based over a few weeks to several months. Scarce, in-demand security specialisms command a premium given strong demand.

What are the Notifiable Data Breaches scheme and the Essential Eight?

The Notifiable Data Breaches scheme is an Australian requirement to notify affected individuals and the regulator about eligible data breaches likely to cause serious harm. The Essential Eight is a set of baseline mitigation strategies from the Australian Cyber Security Centre widely used as a security baseline. A security and data protection expert helps you meet the first and implement the second.

What's the difference between this role and a cyber security engineer?

A security and data protection expert is broad across both security and data privacy, and tends to assess, advise, and design. A cyber security engineer is the hands-on technical builder who implements and operates the defences. If you need direction, assessment, and privacy covered, the expert fits; if you need technical security work done, the engineer does. On larger work they often pair up.

Can a security and data protection expert help us get ISO 27001?

Yes, building and preparing for ISO 27001 certification is common work. The expert helps you design the information security management system the standard requires, implement the controls, prepare the documentation, and get ready for audit, then embed it so it holds up. For a business pursuing certification, often to win customers or contracts, this expertise materially improves the odds and the timeline.

We've had a breach. Can an expert help right now?

Yes, incident response is a core part of the work. An expert helps you understand what happened and contain it, meet your notification obligations under the data breach scheme, communicate appropriately, and then strengthen the business so it's less likely to happen again. Given the time pressure and obligations a breach creates, bringing in specialist help quickly is usually the right call. This is a sensitive area, and serious incidents often also involve legal advisers.

How quickly can I hire a security and data protection expert through Expert360?

Expert360 typically delivers a curated shortlist of vetted security and data protection experts within 48 hours of you describing your needs. Because they're independent, they can usually start within days, which matters when you've had an incident, face a deadline, or a customer is requiring assurance quickly.

How do you measure the success of a security and data protection expert?

Success is measured by whether the business is genuinely better protected: real exposures identified and closed, controls strengthened against a recognised baseline, privacy obligations met, frameworks or certifications achieved where needed, and the business ready to respond to incidents. A good expert agrees these outcomes up front and is held to genuinely improved protection, not just a report or a checklist.