What Does a Cyber Security Health Check Find?

A cyber security health check finds the gaps that let an ordinary mistake become a business interruption. It checks who can access your systems, how email is protected, whether backups can be restored and what happens when a staff member clicks the wrong link.

For a business with 5 to 200 staff, this is usually more useful than buying another security product. The question is not whether you have Microsoft 365, multi-factor authentication or antivirus. The question is whether they are configured properly, monitored sensibly and matched to how your people actually work.

A health check should give you a clear list of findings, the business impact of each one and an order for fixing them. It should not produce a vague score, a 60-page report nobody reads or a sales pitch for tools you do not need.

What is a cyber security health check?

A cyber security health check is a practical review of the people, accounts, devices, data and suppliers that make up your day-to-day IT. It identifies avoidable exposure, then separates urgent work from worthwhile improvements.

For most small and mid-sized businesses, the review starts with the systems that hold money, client data and access to everything else. That usually means Microsoft 365, email, cloud storage, accounting software, payroll, line-of-business applications, mobile devices and backups.

It is not the same as penetration testing. Penetration testing attempts to break into an environment through controlled technical testing. It is not a certification exercise either. A health check can help you prepare evidence for a customer, insurer or tender panel, but it cannot promise an approval or compliance outcome.

The depth should match the reason for the review. A five-person accounting practice with one Microsoft 365 tenant needs a different scope from an NDIS provider with shared client records, roster systems and several sites. More checking is not always better if it does not lead to clear decisions.

Why would a business need a cyber security health check?

Most businesses arrange one after an external prompt. An insurer asks about multi-factor authentication. A larger customer sends a security questionnaire. A director receives a convincing payment-change email. Or the office manager realises nobody can say who still has administrator access.

Those are valid triggers, but waiting for one can make the work rushed. A better time is before a major change: moving files to Microsoft 365, replacing a CRM, introducing an AI tool, onboarding a new managed IT provider or bringing in a new finance manager.

Email fraud is a common example. A business may have multi-factor authentication switched on but still allow external senders to impersonate its domain, forward mail outside the organisation or create inbox rules that hide payment requests. None of these issues are exotic. They are configuration and process problems, and they are often missed because everyone assumes someone else checked them.

A health check also exposes operational weaknesses that look like security issues later. Shared logins, a former employee's mobile still receiving mail, spreadsheets containing passwords, and a backup nobody has tested are all examples. Fix the process first, then automate.

What should a cyber security health check cover?

The review should be evidence-based. That means looking at settings, account lists, recovery arrangements and documented processes rather than relying on a verbal answer that something is “covered”.

Are user accounts and access under control?

Start with identity. Review every user account, administrator account, shared mailbox, service account and external guest. Confirm that departed staff have been removed, privileged access is limited and multi-factor authentication applies where it should.

Pay close attention to finance, payroll and business owners. These accounts can approve payments, access tax records or reset other users' passwords. A separate administrator account is often safer than using the same everyday email account for privileged tasks, although it adds a little process for the people involved.

The check should also look at password reset options and recovery contacts. If a former contractor's mobile number is still set as a recovery method, your access control is not finished.

Is Microsoft 365 and email configured for the risks you face?

Microsoft 365 is often the front door to a business. A useful review checks multi-factor authentication coverage, conditional access settings where applicable, mailbox forwarding, suspicious inbox rules, external sharing and administrator permissions.

Email protection needs a practical lens. Check whether your domain has the right sender authentication records, whether impersonation protection is active and how payment changes are verified. Technology can filter many unwanted messages. It cannot replace a rule that bank-detail changes must be confirmed through a known phone number, not the number in the email.

Phishing training has a place here, but it needs follow-up. One annual video rarely changes behaviour. Short, periodic training and monitored simulations can show whether people know what to do with a suspicious message. The aim is reporting early, not blaming the person who clicked.

Could you restore your data when it matters?

A backup exists only when you can restore it. A health check should establish what is backed up, where the copy is held, how long it is retained, who can access it and when a restoration was last tested.

Microsoft 365 retention settings are not automatically a complete backup strategy. Depending on your configuration and the type of data involved, deleted files, mailbox content and older versions may not be available when you need them. The right approach depends on the applications you use, your contractual obligations and how long you need records kept. Your legal, insurance or industry adviser should guide those obligations.

Test a small restoration rather than accepting a green tick on a portal. Restore a file, mailbox item or selected dataset to a safe location and record how long it took. That gives management a useful answer when asking how a disruption would affect operations.

Are devices and software being managed?

A review should identify unmanaged laptops, mobiles and tablets that access company email or files. It should check whether device encryption, screen locks, supported operating systems and updates are in place.

This does not mean every sole trader needs a complex device-management platform. It depends on the data, the number of devices and whether staff work remotely. A small business may begin with managed Microsoft 365 access, multi-factor authentication and clear rules for personally owned devices. A larger team handling sensitive client records may need more control over enrolment, app access and remote wipe capability.

Also check the boring details: local administrator rights, unsupported software, accounts used by multiple people and applications no longer supported by their vendor. These are not glamorous findings, but they are often easier to fix than people expect.

Do suppliers and cloud tools create hidden exposure?

Most businesses now have more systems than their IT register suggests. Xero or MYOB, a CRM, online forms, payroll, booking tools, file-transfer services and AI assistants may all connect to the same email accounts or business data.

A health check should map the important services, their owners and the access they hold. If a staff member leaves, can you remove their access from every system? If a supplier account is compromised, can it be used to reset other services? If an AI tool is being trialled, has anyone decided what staff may upload to it?

This is where many businesses find shadow IT. The answer is not to ban every useful tool. It is to make ownership and acceptable use clear before data starts flowing between systems.

What should you receive after the check?

Ask for a short findings report that a director or practice manager can use. It should explain the issue in plain language, show the evidence reviewed, identify the likely business impact and state the recommended action.

Priorities matter. A former administrator account, missing multi-factor authentication for finance users or an untested backup deserves immediate attention. Tidying old Teams sites or improving a password policy may be useful, but it should not distract from the first group.

A sensible action plan usually divides work into three timeframes: urgent fixes in days, configuration and process improvements over the next 30 to 90 days, and larger changes that need budgeting or a supplier decision. Each action needs an owner. Otherwise, a report becomes another item in the shared drive.

Be wary of a provider that promises a dashboard before reviewing your setup. No dashboard promises until we've seen your data. The value is in the decisions you can act on, not a coloured score.

What does a cyber security health check not cover?

It does not remove all cyber risk. Staff can still make mistakes, suppliers can still have incidents and new vulnerabilities can appear after the review.

It also does not replace ongoing management. Accounts change, staff join and leave, and software settings drift. A health check is a point-in-time review. Businesses with frequent staff changes, sensitive records or customer security requirements should schedule periodic reviews and assign someone to own the actions between them.

Not every business needs a large managed IT arrangement. A sole trader may only need essential email, Microsoft 365, multi-factor authentication and backup basics. A growing professional services firm may need ongoing monitoring, phishing training and support for its cloud systems. The right scope follows the risk, the data and the operational cost of being unable to work.

Sharktech Global can review Microsoft 365 hardening, email fraud controls, phishing readiness, backup arrangements and access practices as part of a scoped engagement. Work is scoped and priced up front, and we'll tell you whether we're the right fit.

Start with the systems that can stop your business trading or expose your clients. Once those are visible, the next security decision becomes far less complicated.

How Sharktech can help

Want a second opinion on your setup? Our cyber security team runs health checks for Australian businesses, and our managed IT services keep the fixes in place. Book a call to get a clear list of what to fix first.