Do you really need antivirus on a Mac in 2026?

The "Macs don't get viruses" line was always a bit of a marketing simplification, but it had a kernel of truth twenty years ago: the install base was small, and attackers chased the bigger target. That picture has changed steadily, and it's worth understanding what the current reality actually looks like rather than relying on advice from a decade ago.

What macOS does well by itself

Modern macOS is genuinely well defended. Apps from outside the App Store are quarantined and have to pass a notarisation check. The operating system maintains its own malware-signature service (XProtect) and quietly updates it. System Integrity Protection prevents most software, malicious or otherwise, from touching the parts of the OS that matter. For a typical user doing typical things, the built-in defences cover a lot of ground.

Where the gap actually is

The gap isn't really about viruses in the old sense. The risks people run into on a Mac in 2026 look more like this:

• Phishing pages and credential theft. macOS can't tell whether the login page you're looking at is real, because it isn't visible to the OS — it's just a webpage.
• Malicious browser extensions. An extension you installed for a legitimate reason can be sold, taken over, or quietly updated to do something you didn't agree to.
• Adware and "free" cleaners. Most macOS infections in practice are not viruses but bundled adware that came along with something the user installed deliberately.
• Cross-device risks. Passwords saved on your Mac may be the same ones a family member uses on a Windows laptop, where the picture is different.

What a sensible setup looks like

For most people, the honest answer is: macOS's built-in protection is genuinely good, and you don't need to layer five different security products on top of it. What's useful is something that fills the gaps the OS can't:

• Web-level protection that flags phishing pages before you submit credentials.
• A regular check on which browser extensions you actually have installed, and removing the ones you no longer use.
• A password health check that flags reused or breached logins across services.
• A simple way to scan files that came from outside the App Store before you open them.

The short answer

You don't need a heavy traditional antivirus on a modern Mac. You do benefit from a lightweight layer that covers phishing, password hygiene and the occasional file from outside the App Store. That's the actual gap, and it's a small one to fill.