Choosing and paying for security software
This is the page where the commercial relationship behind this site is most relevant, so it is worth restating before anything else. ORYNA s.r.o. is paid a commission when someone buys Norton AntiVirus Plus after following the link on these pages. That arrangement does not change the answers below, and the answers below include several cases where the right decision is to buy nothing at all. Read them on that basis, and read the affiliate disclosure if you want the full account of how it works.
Security software is sold on worry, which makes it unusually hard to judge. The questions here are deliberately framed around what you would actually be buying rather than what might go wrong without it.
Do I actually need to pay for antivirus software?
No law in Australia requires it, and both Windows and macOS include protection that is switched on by default. Paying is a choice about additional features, cover across several devices, and having support to call — not a gap you are obliged to fill.
What you already have
Windows includes Microsoft Defender Antivirus, which provides real-time protection and updates itself through Windows Update at no additional cost. macOS includes several layers of its own, including checks on software before it runs. Neither requires activation or a subscription, and both are maintained by the companies that make the operating system.
Alongside those, the things that most reduce risk are not products at all: keeping the operating system updated, keeping backups, using unique passwords, and being deliberate about what you install. Those are covered on the other pages of this site and they cost nothing.
When paying is a reasonable choice
- You want one subscription covering several computers in a household rather than configuring each separately.
- You want a support channel to contact when something is wrong, rather than searching for answers yourself.
- You want extras bundled into one arrangement — a password manager, backup space, a firewall with its own controls.
- You are supporting someone less confident with computers and want a product that reports its status clearly.
When it is not
- You are buying it to make an old or full computer faster. It will not, and the slow computer page covers what will.
- You are buying it after an account was taken over. Account recovery is the fix, not software.
- You already have a product and would be installing a second one alongside it.
- You are buying because a web page or a phone call told you to. That is the one circumstance in which the answer is always no.
What is the real difference between free and paid security software?
Detection of common threats is broadly comparable across reputable products. The differences are in what surrounds it: bundled extras, how many devices are covered, the support arrangement, and whether the product tries to sell you something while you use it.
| Aspect | Built-in or free products | Paid subscriptions |
|---|---|---|
| Real-time protection | Included | Included |
| Update frequency | Automatic, through the operating system or the vendor | Automatic, through the vendor |
| Devices covered | One, per installation | Often several, under one subscription |
| Bundled extras | Rare; occasionally a limited version to encourage an upgrade | Commonly a password manager, firewall controls or backup space |
| Support | Community forums and documentation | A support channel included in the subscription |
| Prompts to upgrade | Common in free products from commercial vendors | Fewer, since you have already subscribed |
A note on free products from commercial vendors
A free product from a company that also sells a paid one has to be funded somehow, and that funding usually takes the form of regular prompts to upgrade, bundled offers, or additional software included in the installer. That is not inherently objectionable, but it is a cost of a kind, and it is worth comparing against the protection built into the operating system, which has no such incentive.
What does a paid subscription actually cover?
Detection and removal of malicious software on the devices it is installed on, plus whatever extras that particular subscription bundles. It does not cover your accounts, your backups, your hardware, or decisions you make while using the computer.
What it does
A security subscription watches files as they arrive and as they run, compares them against known threats and against patterns of behaviour, quarantines what it judges harmful, and lets you run scans on demand. Most also filter known imitation websites in the browser, and most include some form of firewall control beyond what the operating system offers by itself.
What it does not do
It does not stop you typing a password into a convincing copy of a bank login page, because that happens in your head rather than on the disk. It does not recover an account someone else has the password to. It does not back up your files unless backup is one of its bundled extras and you have set it up. It does not make a full disk larger or a failing drive healthy. Keeping those boundaries in view is what stops a subscription from becoming a substitute for the habits that do the real work.
About Norton AntiVirus Plus specifically
Norton AntiVirus Plus is a paid security subscription for desktop computers running Windows or macOS, sold through an affiliate programme in which ORYNA s.r.o. participates and is paid a commission per sale. Crisp Phase does not test products and does not publish scores, so the sensible thing is to read the vendor's own description of what the subscription includes, in Australian dollars, and compare it against the list of situations above.
Visit the Norton AntiVirus Plus website for the current feature list, system requirements and pricing from the vendor.
Paid affiliate link. A commission is paid to ORYNA s.r.o. on sales made through it. You pay the same as you would going direct.How do I compare products without wading through marketing copy?
Write down what you actually need first — how many devices, which operating systems, which extras — and then check each product against that list. Comparing against your own requirements is far quicker than comparing products against each other.
The questions worth answering before you look at any product
- How many devices need covering, and what are they? A subscription sized for five devices is wasted on one.
- Which operating systems? Some subscriptions cover Windows and macOS; some extend to phones; the detail matters.
- Do you need the bundled extras, or do you already have them? Paying twice for a password manager is common.
- What does renewal cost, as distinct from the first year? Introductory pricing and renewal pricing frequently differ.
- How is support provided, and in what hours relative to Australian time zones?
- What happens to the extras if you stop subscribing — particularly to anything stored in bundled backup space?
What to be sceptical about
Claims of complete, total or guaranteed protection do not describe anything achievable, and any product making them is describing an aspiration rather than a capability. Comparison sites that score products are frequently paid by the products they score, so treat rankings as advertising unless the methodology is published and the funding is disclosed. This site publishes no scores for the same reason — it has a commercial relationship with one of the products and a ranking from it would be worth nothing.
What happens when a security subscription runs out?
The product generally stops receiving updates and may stop protecting in real time while remaining installed. On Windows, Microsoft Defender resumes once the other product is removed or stands down. Decide deliberately rather than leaving a lapsed product in place.
Why a lapsed product is worse than none
An expired product can occupy the position of the active protection on the system without doing the work, which leaves a machine less protected than it would be with nothing installed at all. It will also typically display renewal prompts frequently enough to become background noise, which is how people end up ignoring genuine messages too.
What to do, at no cost
- Decide whether you are renewing. If yes, renew and check the product reports itself as active.
- If not, uninstall it using the vendor's own removal tool rather than only the standard uninstaller, which often leaves components behind.
- Restart, then open Windows Security and confirm that Microsoft Defender Antivirus shows as on. On macOS, confirm the built-in protections are not disabled.
- Check for any bundled extras you were relying on — stored passwords, backed-up files — and move them somewhere else before the subscription ends rather than after.
Automatic renewal and your rights
Security subscriptions are commonly sold with automatic renewal enabled. Under the Australian Consumer Law, businesses selling to consumers in Australia must not engage in misleading or deceptive conduct, which includes how renewal terms are presented. If you believe a renewal was handled misleadingly, the ACCC publishes guidance on consumer rights and on where complaints go. Check the renewal setting in your account rather than assuming it is off.
Do I need security software on my phone?
For most people, no. Phone operating systems isolate apps from each other and from the system in a way desktop computers do not, and apps from the official stores are reviewed before listing. The risks on a phone are mostly about messages, permissions and accounts rather than files.
What actually matters on a phone
- Install apps only from the official store for your device, and look at what each one asks permission to access.
- Keep the operating system updated. Phone updates frequently contain security fixes and arrive automatically if allowed to.
- Review app permissions periodically and withdraw any that are not needed for what the app does.
- Set a device passcode and use the biometric unlock, which protects everything stored on the device.
- Treat messages and calls as the real risk, since that is where almost all phone-based harm reaches people. The suspicious links page covers that ground.
Where a paid product comes into it
Mobile components of security subscriptions mostly provide message filtering, web filtering and a mechanism for locating a lost device. The device's own operating system already offers device location, so the question is whether the filtering is worth it to you. Norton AntiVirus Plus itself is a desktop product, covering Windows and macOS computers rather than phones.
What should I check before buying in Australia?
Buy from the vendor or an authorised seller, check the renewal price rather than the introductory one, confirm the device and operating system coverage, and keep the receipt. Consumer guarantees apply to software bought in Australia and cannot be contracted away.
Practical checks
- Confirm the price in Australian dollars at the checkout, including any currency conversion if the seller is based overseas.
- Check how long the term is and what the price becomes at renewal.
- Check the number of devices and whether the subscription covers both Windows and macOS if you use both.
- Check the refund arrangements the vendor offers, which are in addition to, not instead of, your rights under Australian law.
- Keep the confirmation email. It is the receipt, and you will need it to make any claim.
Your rights
Goods and services bought by consumers in Australia come with guarantees under the Australian Consumer Law, including that they are fit for the purpose described and match their description. These guarantees cannot be excluded by a licence agreement. The ACCC explains how they apply and what remedies are available if something is wrong.