For most people in 2026, the honest answer is no — you do not need to buy antivirus, because the protection already built into your operating system is good enough. Windows Defender, the security baked into macOS, and the sandboxing on Android and iOS now handle the threats ordinary users face. The bigger risk is not a missing scanner; it is clicking the wrong link. This guide gives a straight per-platform answer and explains when extra tools genuinely help.
The short answer by platform
| Platform |
Built-in protection |
Need paid antivirus? |
| Windows |
Microsoft Defender (on by default) |
No for most; consider extras only for high-risk use |
| macOS |
XProtect, Gatekeeper, notarization |
Rarely; lower target, not zero risk |
| Android |
Google Play Protect, app sandboxing |
No if you stick to the official store |
| iPhone / iPad |
Locked-down sandbox, App Store review |
No; traditional antivirus is not even possible |
Why built-in is usually enough
Microsoft Defender now scores at or near the top of independent malware tests, runs quietly, and updates automatically. Apple ships layered protections that silently block known malware. Mobile operating systems isolate apps so one cannot freely read another. A decade ago third-party antivirus filled real gaps; in 2026 those gaps are mostly closed for everyday users.
What actually puts you at risk
Software is not where most people get burned. The real attack surface is behavior:
- Phishing emails and texts that trick you into entering a password or card number.
- Fake downloads and "your PC is infected" pop-ups that install the very malware they warn about.
- Reused or weak passwords exposed in a breach somewhere else.
- Pirated software and cracks, a classic malware delivery method.
- Outdated systems running months-old, unpatched software.
No antivirus fixes a habit. A password manager, two-factor authentication, prompt updates, and healthy skepticism prevent far more harm than another scanner.
When extra protection is worth it
- You are high-risk or non-technical. If you frequently install unfamiliar software, or you are setting up a device for someone who clicks everything, a reputable paid suite adds a useful safety net.
- You want bundled convenience. Some suites package a VPN, password manager, and parental controls. That can be fine — just know you can usually get better standalone versions of each.
- Business or compliance needs. Managed endpoint protection is a different category from consumer antivirus and is often required at work.
What to skip
- Free third-party antivirus that nags and upsells. Several slow your machine, throw constant pop-ups, and have a history of monetising user data — sometimes a worse deal than the built-in tool.
- "Registry cleaners" and "PC optimisers" bundled with security suites. They rarely help and can break things.
- Paying for features you already have. If your bank, browser, and OS already cover it, do not pay twice.
How to stay safe without spending a cent
- Leave the built-in protection on and keep your OS updated.
- Use a password manager and turn on two-factor authentication everywhere.
- Install apps only from official stores and verified publishers.
- Treat unexpected links, attachments, and pop-ups as guilty until proven safe.
FAQ
Is Windows Defender really good enough?
For the vast majority of users, yes. It performs well in independent tests, is free, and stays out of your way. Heavy-risk users may still want a second layer.
Do Macs need antivirus?
Usually not. Macs are a smaller target and have strong built-in defences, but they are not immune — scams and malware do exist for macOS, so safe habits still matter.
Do I need antivirus on my phone?
On iPhone, no — the system does not even allow traditional antivirus. On Android, Play Protect plus sticking to the official store covers most people.
Is paid antivirus a scam?
No, but much of what you pay for is convenience bundling rather than better core protection. Decide based on whether you will use the extra features.
Where to go next
How to set up a home network in 2026, How to back up your phone in 2026, and How to make your phone faster in 2026.