Choosing and paying for security software
Nothing in Australian law obliges you to buy security software for a personal computer. Windows and macOS both include protection that is on by default. Paying for a subscription is a reasonable decision about coverage, convenience and support, not an obligation — and it is a purchase like any other, with the consumer guarantees of the Australian Consumer Law attached to it.
Do I actually need to pay for antivirus software?
Short answer: no, not as a requirement. Whether it is worth it depends on how many devices you look after, who else uses them, and how you would rather spend your time when something goes wrong.
How to think about it
The useful question is not "is the paid one better" but "what am I buying that I do not already have". Usually the answer is one or more of three things: coverage across several devices under a single subscription; features that sit alongside malware protection, such as a password manager or a backup allowance; and somebody to contact when you are stuck. Those are real benefits for some households and irrelevant to others.
Against that, the behaviours that prevent most problems cost nothing: updates installed promptly, a different password on each important account, two-factor authentication on email and banking, and a habit of pausing before typing credentials into a page reached from a message. No subscription substitutes for those, and a household that has them in place is already doing the part that matters most.
What to try first, at no cost
Confirm that the protection included with your operating system is switched on and up to date, and run a full scan with it. Then list what you actually want that it does not provide. If that list is empty, there is nothing to buy today, and the decision can wait.
When to ask for official help
The Australian Cyber Security Centre publishes vendor-neutral guidance for individuals and families, which is a better basis for this decision than any marketing material, including this page.
Where a paid product may or may not help
If, having made that list, you want a single subscription covering several machines with a support line attached, a paid product is a sensible purchase. Norton AntiVirus Plus is one option in that market; what it includes and what it costs in Australian dollars are set by the vendor and published on the vendor's own site. Visit the Norton AntiVirus Plus websitePaid affiliate link. SteadyScope receives a commission from the affiliate network that operates the link if a subscription is purchased after following it; the price you pay is the same.
What does the protection built into Windows and macOS cover?
Short answer: both include malware protection that runs by default, and both add further layers around it. Neither requires a purchase or a separate installation.
What is included
On Windows, the built-in security application provides continuous malware protection, a firewall, controls over which applications may run, and browser-level warnings about addresses known to be harmful. On macOS, protection is spread across several mechanisms rather than presented as a single application: software is checked before it runs, known malicious software is removed in the background, and the system restricts which applications may reach your files, camera and microphone until you allow it. Because the macOS arrangement is less visible, people often assume there is nothing there.
Both platforms update their protection automatically as part of ordinary system updates, which is the main reason that keeping updates current matters. The sensible starting assumption is that you already have functioning protection and the question is whether you want more.
What to try first, at no cost
- Open the security settings on your system and confirm that real-time protection is on and definitions are current.
- Confirm that the firewall is enabled.
- Run a full scan rather than a quick one, and let it finish.
- Check that automatic updates are enabled for the operating system and your browser.
When to ask for official help
If the built-in protection reports that it has been switched off and will not switch back on, that is worth investigating properly, because turning it off is a common first step for unwanted software. Guidance on recovering a device is published at cyber.gov.au.
Where a paid product may or may not help
A paid product generally replaces the built-in malware protection rather than adding to it, which is by design; see the question on running two products below. What it adds is the surrounding features and the support arrangement.
How should I compare one paid product with another?
Short answer: on the things you can verify yourself — devices covered, what happens at renewal, platform support, and refund terms — rather than on claims about detection, which no buyer can test.
What is worth comparing
| Question | Why it matters |
|---|---|
| How many devices does one subscription cover? | Household cost depends on this far more than on the headline figure. |
| Which platforms are covered, and with what features? | Mobile components often differ substantially from the desktop version. |
| What is the price at renewal, and when is it charged? | Introductory and renewal pricing are frequently different. |
| How is automatic renewal switched off? | Knowing this before buying saves a difficult conversation later. |
| What is the published refund arrangement? | It sits alongside your rights under the Australian Consumer Law. |
| Is support available in Australian hours? | If support is the reason you are buying, this is the reason. |
| Does it include a password manager or backup? | You may already pay for these separately. |
Detection claims are harder. Independent laboratories test security products and publish results, and those results change from round to round; a reader cannot reproduce them. Treat any single claim about detection as a marketing statement unless you can trace it to a published test, and weight the verifiable items above more heavily.
What to try first, at no cost
Write down the answers to the table above for each product you are considering, from the vendor's own pages rather than from a comparison site, and put the two lists side by side. If a vendor's pages do not answer one of them plainly, that is itself an answer.
When to ask for official help
If advertising for a product appears to be misleading about price, inclusions or renewal, the Australian Competition and Consumer Commission is the body that enforces the prohibition on misleading or deceptive conduct in Australia, and it accepts reports.
Where a paid product may or may not help
This question is the comparison itself. The only honest guidance is to decide what you need first and then read the terms, rather than the other way round.
Can I run two security products at once?
Short answer: as a rule, no — not two products providing continuous real-time protection. They interfere with one another.
Why it causes trouble
Continuous protection works by inspecting files as they are opened. Two products doing that simultaneously inspect each other's activity, which produces slowdowns, repeated alerts about the other product's quarantine folder, and occasionally a situation where neither works properly. Windows handles this by stepping its own protection aside automatically when a recognised third-party product is installed, which is why installing a paid product does not leave you with two.
The exception is an on-demand scanner: a tool that is run manually, scans once, and is not resident. Running one of those as a second opinion alongside your main protection is a different proposition and generally does not conflict.
What to watch out for
- Installing a second resident product in the hope of catching what the first missed. Run a manual second-opinion scan instead.
- Leaving a previous product partly uninstalled. Vendors publish removal tools for exactly this situation.
- Trial versions bundled with a new computer, which keep prompting long after they have expired.
- Any advice to disable your existing protection permanently in order to install something.
What to try first, at no cost
Before installing anything new, remove the previous product properly using the vendor's own removal tool, restart, and confirm that the built-in protection has taken over. Then install the new product. This sequence avoids most of the problems people report after switching.
When to ask for official help
If a product cannot be removed through the normal uninstall route, the vendor's support channel is the right place to go, since removal tools are vendor-specific.
Where a paid product may or may not help
One paid product, properly installed, is the arrangement that works. Two is not twice as good.
Why did my subscription renew at a higher price?
Short answer: because the first term was usually sold at an introductory rate and the renewal is at the standard rate, under terms agreed at the time of purchase.
How this generally works
Security subscriptions are commonly sold with automatic renewal switched on. The renewal price, the renewal date and the method of cancelling are set out in the terms accepted at purchase, and a notice is usually sent before the charge. The notice frequently arrives at an address that is no longer checked, or is filtered, which is why the charge feels unannounced. None of this is unique to security software; it is the standard structure of consumer subscriptions.
What to try first, at no cost
- Sign in to your account on the vendor's site and find the subscription and billing section.
- Note the renewal date, the renewal amount, and whether automatic renewal is on.
- Switch automatic renewal off if you would rather decide each year; this usually leaves the current term running.
- Set a reminder a fortnight before the renewal date so the decision is yours and not the default.
- If you were charged without the notice the terms require, raise it with the vendor in writing and keep the correspondence.
When to ask for official help
If a vendor will not engage, or if the renewal terms were not made clear at the point of sale, the Australian Competition and Consumer Commission publishes guidance on subscription traps and on your rights, and state and territory consumer affairs offices handle individual disputes.
Where a paid product may or may not help
This is a billing question rather than a software one. The protection against it is reading the renewal terms before subscribing, which is why it appears in the comparison table above.
Can I cancel and get my money back in Australia?
Short answer: it depends on the reason. A vendor's own refund window is one route; the consumer guarantees in the Australian Consumer Law are a separate and stronger one that applies regardless of what a vendor's terms say.
Two different things
A voluntary refund period — a number of days in which a vendor will refund a subscription for any reason — is a commercial offer, and its length is whatever the vendor publishes. Separately, goods and services supplied to consumers in Australia come with guarantees that cannot be excluded by a contract term, including that services are supplied with due care and skill and that goods are fit for the purpose described. Where a product does not meet those guarantees, a remedy is available regardless of a vendor's stated refund window. Changing your mind, on the other hand, is not covered by the guarantees, and in that case you are relying on the vendor's own policy.
What to try first, at no cost
Ask the vendor in writing, stating plainly what you bought, when, what the problem is and what remedy you want. Keep the request factual. Most disputes are resolved at this stage, and a written record is what makes the next stage possible if it is not.
When to ask for official help
Information about consumer guarantees, and what counts as a major failure entitling you to a refund rather than a repair, is published by the Australian Competition and Consumer Commission. Individual complaints are handled by the consumer affairs or fair trading office in your state or territory.
Where a paid product may or may not help
Nothing here is solved by software. It is worth knowing before you subscribe, because knowing it changes how carefully you read the terms at the point of purchase.