Ask any long-time Mac user whether they run antivirus software and you’ll probably get a shrug. Macs have enjoyed a reputation as computers that “don’t get viruses” for decades — and compared with Windows PCs, that reputation is mostly earned. But “fewer viruses” is not the same as “no malware.” Here’s the honest answer to whether your Mac needs antivirus protection.
Why Macs get fewer viruses than Windows PCs
Several factors work in the Mac’s favor. macOS is built on a Unix foundation with strong permission boundaries, and Apple layers on dedicated protections: Gatekeeper blocks unsigned software, XProtect scans for known malware signatures in the background, and notarization checks apps before they first launch. Apple’s Platform Security guide details how these layers fit together. Add the Mac’s historically smaller market share — a less tempting target for mass malware campaigns — and it’s no surprise many Mac users run no antivirus at all without ever having a problem.
Mac malware is real, though
That said, Mac malware absolutely exists. The difference is what it does: rather than the destructive worms of Windows lore, most Mac threats hijack your resources (cryptocurrency miners), flood you with ads, or quietly steal data like browser credentials. Very few can actually break macOS itself. And nearly all of it arrives the same way — through third-party apps downloaded outside the App Store: pirated software, fake “Flash Player” installers, and shady browser extensions. MacRumors regularly reports on these outbreaks, which almost always trace back to software the user chose to install. Simply browsing the web on a Mac carries minimal risk.
How to stay safe without antivirus
For most people, good habits beat paid software. Follow these rules and your Mac stays clean:
- Install apps from the App Store first. Every App Store app is reviewed by Apple, which filters out the vast majority of malware before it ever reaches you.
- Stick to trusted developers outside the store. If you must download directly, use well-known developers with signed, notarized apps — and never bypass a Gatekeeper warning telling you an app “can’t be opened.”
- Audit what’s installed. Every few months, open your installed apps list and remove anything you don’t recognize or no longer use. Malware can’t run if it isn’t there.
- Keep macOS updated. Apple ships XProtect signature updates silently and security patches regularly — install them promptly.
- Ignore “your Mac is infected” pop-ups. These scareware ads try to frighten you into installing the very malware they warn about. Close the tab and move on.
If you still want antivirus
Peace of mind has value, and a few scanners have earned their reputation on the Mac: Bitdefender, Intego Mac Internet Security (Mac-only specialists), and Malwarebytes (excellent free on-demand scans). If you go this route, one reputable scanner is plenty — running two real-time antivirus apps simultaneously causes more problems than it solves.
If it still doesn’t work
If your Mac is already misbehaving — pop-ups everywhere, a fan spinning at full tilt for no reason — run a Malwarebytes scan, check System Settings → General → Login Items for strangers, and remove suspicious apps. A clean macOS reinstall remains the ultimate reset if something dug in deep.
Frequently asked questions
Does macOS have built-in antivirus?
Effectively, yes. XProtect provides signature-based malware detection, Gatekeeper controls what can launch, and both update automatically. Apple doesn’t market it as “antivirus,” but that’s what it is.
Can Macs get ransomware?
It’s extremely rare compared with Windows. The realistic threats are adware and resource hijackers. Either way, keep regular Time Machine backups — they’re the best insurance against any malware.
Conclusion
Most Mac users don’t need third-party antivirus: the App Store, trusted developers, and macOS’s built-in layers handle the real-world threat level. If you want belt and braces, pick one respected scanner — and then get back to enjoying your Mac. For more ways to get the most out of it, see our guide on enabling face lighting during video calls on Mac.
