When you think of Apple computers, security and reliability often come to mind. For years, Mac users have prided themselves on avoiding the viruses and malware that seem to plague Windows PCs. But is this sense of safety entirely justified? Can an Apple computer really get a virus?
Let’s bust the myths and break down the facts so you know exactly how vulnerable your Mac might be—and how to protect it.
Are Apple Computers Immune to Viruses?
The Myth of Mac Invincibility
It’s a common belief that Macs are completely immune to viruses. This myth likely stems from the fact that Apple has historically faced fewer attacks compared to Windows-based systems. However, fewer doesn’t mean none.
Macs can and do get viruses, just not as frequently as other systems. The reason lies more in market share and attacker incentives than any magical immunity.
Why Macs Are Targeted Less Often
- Smaller market share: Historically, Windows has dominated the personal computer market. Cybercriminals tend to go after the largest pool of users.
- UNIX-based architecture: macOS is built on a Unix-like foundation, which has robust security features baked in.
- Built-in security features: Tools like Gatekeeper, XProtect, and System Integrity Protection (SIP) add extra layers of protection.
Still, no system is 100% secure, and relying solely on the built-in tools isn’t enough in today’s threat landscape.
Types of Malware That Can Affect a Mac
Although Macs aren’t bombarded with malware the same way Windows PCs are, they are still susceptible to a range of threats.
Common Threats for Mac Users
- Adware: This is the most common issue. It clutters your browser with unwanted ads and slows down performance.
- Trojans: These malicious programs disguise themselves as legitimate software.
- Ransomware: Though rare on Macs, it’s possible. Ransomware locks your files until you pay a fee.
- Spyware: Some malicious software can track your activity or steal sensitive data.
- Phishing attacks: These often come via email or fake websites, tricking users into revealing personal information.
Example: In 2021, the Silver Sparrow malware was discovered on thousands of Macs, including some running Apple’s new M1 chip. It didn’t do much harm, but it showed how even newer Macs can be infected.
How Apple Tries to Keep Your Mac Safe
Apple has made great strides in securing macOS over the years. Here’s how your Mac tries to protect itself:
Built-In Security Features
- Gatekeeper: Blocks apps from unidentified developers.
- XProtect: A silent antivirus scanner built into macOS.
- System Integrity Protection (SIP): Prevents critical system files from being modified.
- Sandboxing: Isolates apps so malware can’t spread.
- Notarization: Apps submitted to Apple are scanned for malicious content.
These tools work quietly in the background, but they’re not foolproof. If you bypass security warnings or install apps from shady sources, you can still get infected.
Signs Your Mac May Have a Virus
Think your Mac is acting strangely? Here are some common signs of infection:
- Slow performance or freezing
- Unexpected pop-up ads
- Browser redirects
- Apps you didn’t install
- High CPU usage without obvious reason
- Frequent crashes
If you notice any of these, it’s a good idea to run a virus scan or consult a professional.
How to Protect Your Mac from Malware
Prevention is always better than cure. Here are some best practices to keep your Apple computer safe:
Essential Mac Security Tips
- Keep macOS updated: Security patches fix vulnerabilities.
- Avoid pirated software: These are often loaded with malware.
- Use strong, unique passwords: Consider a password manager.
- Be cautious with downloads and email attachments
- Install reputable antivirus software: Even on a Mac, it adds a safety net.
- Don’t ignore macOS security alerts
Some good antivirus options for Mac include Malwarebytes, Bitdefender, and Intego.
Should You Install Antivirus Software on a Mac?
The Short Answer: Yes
While macOS has excellent built-in security, third-party antivirus software can catch threats Apple might miss. Especially if you:
- Frequently download third-party apps
- Share your device with others
- Use your Mac for work or sensitive information
Antivirus tools can detect and remove malware, alert you to phishing attempts, and block sketchy websites.
Conclusion: Yes, Macs Can Get Viruses—But You Can Stay Protected
So, can an Apple computer get a virus? Absolutely. While they are less likely to be infected than Windows machines, Macs are not immune. As their popularity grows, so does their appeal to cybercriminals.
Luckily, with smart browsing habits, regular updates, and a layer of antivirus protection, you can enjoy a safe and secure Mac experience.

Caleb Carlson is a contributing writer at Computer Site Engineering, specializing in computer technology, software trends, and hardware innovations. His articles simplify complex tech topics, making them accessible to readers of all levels.