Do you need antivirus on macOS?
One of the most common questions businesses ask is whether their team’s Macs, including MacBooks and iMacs, need third-party antivirus software. Many people assume that because Macs have a reputation for being secure, they don’t need extra protection. Others worry that as MacBooks become more popular in business, the risk of malware is growing. The short answer: it depends.
How macOS protects you by default
Apple has built strong, layered security into macOS. Instead of a traditional antivirus program, Macs use several integrated features that work together to block malware and keep your data safe:
XProtect – Apple’s built-in malware scanner, updated silently in the background.
Gatekeeper – Blocks untrusted apps from running unless they come from the App Store or identified developers.
System Integrity Protection (SIP) – Prevents malware from modifying critical system files.
Sandboxing – Limits what apps can access, reducing the damage if something malicious slips through.
These features provide continuous, lightweight security without the overhead of most third-party software.
➡️ Want clear guidance on whether your MacBooks need extra protection? Book a video call and we’ll help you decide.
Why some say macOS built-in security is enough
Plenty of long-time Mac users — especially in communities like Reddit — argue that Apple’s tools are sufficient for most. They point out that macOS’s Unix-based foundation and Apple’s “walled garden” approach mean fewer vulnerabilities compared with Windows. If you stick to trusted apps and safe browsing habits, Apple’s protections are usually enough. Adding third-party antivirus can even cause more harm than good, slowing down your Mac and creating new vulnerabilities.
Why others recommend third-party antivirus
Security experts and tech blogs take a different view. They note that Mac-specific malware is increasing, including adware, credential stealers, and ransomware. Apple’s tools aren’t always the fastest at catching brand-new or “zero-day” threats. For professionals handling sensitive data, or teams regularly downloading software outside the App Store, third-party antivirus can add an important extra layer. Many paid solutions also include phishing protection, advanced firewalls, and broader malware databases.
Striking the right balance
For casual or lower-risk users, Apple’s built-in tools are often enough — provided you practice good internet hygiene. For business teams, compliance-heavy industries, or anyone handling sensitive information, an additional security layer may be wise.
| Benefits | macOS Built-in | Third-party AV |
|---|---|---|
| Core protection | ||
| Blocks known Mac malware automatically | ||
| Broad detection of new and old threats | ||
| Always-on scanning of every file | ||
| System safeguards | ||
| Stops untrusted apps from running | ||
| Protects critical system files from tampering | ||
| Limits what each app can access | ||
| Extra protections | ||
| Warns about dangerous websites & downloads | ||
| Centralised firewall controls & policies | ||
| Scans for Windows threats in shared files | ||
Why we recommend a tailored approach
At Kimbley IT, you only get advice that fits your needs. We don’t sell one-size-fits-all antivirus. For Windows, we recommend Microsoft Defender because it’s proven, built-in, and enough for most. On Macs, the choice comes down to your risk profile. If Apple’s built-in security covers your team’s needs, we’ll recommend sticking with it. If your business handles sensitive data or faces higher risks, we’ll guide you to the right lightweight third-party solution.
➡️ Ready to make the right call on MacBook security? Book a video call and we’ll tailor the advice to your business.
FAQs
Does macOS have antivirus built in?
Yes. XProtect scans for known malware, Gatekeeper blocks untrusted apps, and System Integrity Protection prevents harmful system changes.
Do Macs get viruses?
Yes, though far less often than Windows PCs. Malware targeting Macs is increasing, but Apple’s protections block most threats.
Should I install antivirus on my Mac?
It depends. For most casual users with good habits, Apple’s tools are enough. For higher-risk users or businesses, an additional layer may be worth it.
How does macOS stay secure over time?
Apple regularly updates XProtect and other security features silently in the background.
Will antivirus slow down my Mac?
Yes, third-party antivirus can impact performance — which is why you should only add it if your risk level makes it worthwhile.
Take the next step
Want IT security that’s simple, effective, and tailored to your team? Book a video call today.
