The best Mac antivirus software in 2021
Every Mac user should have one of the best Mac antivirus programs on their machine, even if that program is free.
That’s because Apple can no longer honestly claim that Macs never get infected. Mac malware has risen steadily in the last few years, and today’s Macs are also plagued by adware, scareware and other potentially unwanted programs.
The best Mac antivirus programs quickly detect malware that no one has ever seen before and will double-check files that have cleared Apple’s built-in Gatekeeper program.
Many Mac antivirus programs also check for Windows malware, which can hide on Macs. Some come with useful extras such as password managers, system optimizers or VPN services.
The top 3 best Mac antivirus brands
2. Norton has the best feature set
Norton 360 Standard includes a password manager, unlimited VPN data, a firewall and Dark Web monitoring, features you don’t often see with Mac antivirus software.View Deal
3. Avast offers the best free Mac antivirus
Avast Security for Mac may cost nothing, but it doesn’t cut corners. Its malware protection is top-notch, its system impact is minimal and it’s dialed back the annoying ads upselling you to a paid version. View Deal
What is the best Mac antivirus program?
We think Bitdefender Antivirus for Mac is the best Mac antivirus program. It had a nearly invisible impact on system performance, caught all Mac and Windows malware in lab tests, rolls back files encrypted by ransomware, and hardens your web browser against online attacks. It also offers 200MB of VPN data daily, although that’s just a tease for the unlimited service.
Close behind is Norton 360 Standard, which has even better malware detection plus an unlimited VPN and password manager. Norton catches all Mac and Windows malware in lab tests, has a very small system-performance impact and includes LifeLock dark-web monitoring.
Our favorite free option is Avast Security for Mac, which has nearly perfect malware protection and an easy-to-use interface. Its system-performance impact is much less than before and it no longer nags you to upgrade to paid Avast products.
Kaspersky Internet Security for Mac has perfect malware-detection scores, webcam protection and a hardened web browser. It offers 300MB of daily VPN usage, but its password manager and parental controls are also limited unless you pay more.
There’s not much wrong with Trend Micro Antivirus for Mac, except for a rather heavy system-performance impact during full scans. It shields files from ransomware, protects your webcam and very good malware protection. Yet it doesn’t do much to stand out from the crowd.
Intego Mac Internet Security X9 comes from the granddaddy of all Mac antivirus companies, and its detection and protection skills are very good. But it’s got a relatively sparse set of tools and features that resemble those of free antivirus apps.
Sophos Home Premium is a hidden gem. It has few extra features, but protects your Mac’s webcam and has web filters for children and dedicated protection against ransomware. You can protect up to 10 Mac or PCs for a bargain price.
McAfee Antivirus Plus is also an inexpensive 10-device bundle protecting Macs, PCs and Android devices. But it’s got few extra features for Mac and its scans can create large system slowdowns. Its Mac malware protection performs a notch below those of Bitdefender and Sophos.
Malwarebytes for Mac Premium has never had malware-detection lab tests, but Malwarebytes’ Windows consumer antivirus software does not do well. However, we can recommend the free Malwarebytes for Mac, an excellent cleanup tool that’s the perfect complement to good Mac antivirus software.
The best Mac antivirus software you can get
Bitdefender Antivirus for Mac has an easy-to-use interface, affordable pricing, nearly flawless malware detection and a very light system-performance impact. For those reasons, it’s once again our Editor’s Choice for best Mac antivirus software.
Unusually for a Mac antivirus program, Bitdefender can roll back ransomware encryption, including on Time Machine backups. It also offers extensions to harden your web browser and blocks online trackers to protect your privacy. The Autopilot and Bitdefender Shield features keep the software running without much human intervention.
The only downsides are the absence of the password manager that comes with the Windows version of Bitdefender Antivirus, and that the Bitdefender VPN service is limited to 200MB per day unless you pay more. Other than that, it’s a nearly perfect Mac antivirus program.
Read our full Bitdefender Antivirus for Mac review.
Norton 360 Standard has a ton of useful extras, including unlimited VPN service and an unlimited password manager, two features for which its rivals make you pay extra. It’s also got a two-way firewall, a system optimizer and dark-web monitoring of your personal data.
More importantly, Norton 360 Standard has a very small impact on system performance, always-available tech support and, last but not least, flawless detection of Mac malware.
You’ll pay a lot for these luxuries, however, although you’ll be saving money on the cost of a stand-alone VPN or password manager. We hope that Mac users will soon get the parental controls, webcam protections and backup software that Windows users of Norton 360 Standard already have.
Read our full Norton 360 Standard review.
Avast Security for Mac has improved a lot since it was called Avast Free Mac Security. The malware-detection rate is now nearly perfect, the system-performance impact is much less and the annoying ads that tried to upsell you to Avast paid programs have been drastically dialed back.
Avast also screens websites for phishing scams and other common threats and scans your Wi-Fi network for outdated devices and unwelcome guests. Its interface is attractive and easy to navigate, but be aware that some of the features, including ransomware rollbacks, are available only to paying customers.
The password manager and the email-attachment screener have disappeared, however, and the tech support is limited to online documents. Still, if you want a solid, dependable Mac antivirus program for nothing, this is the one to get.
Read our full Avast Security for Mac review.
Kaspersky Internet Security for Mac has perfect malware-detection rates, a light system impact during scans and an intuitive user interface. It can even turn off the webcam on a MacBook, a feature that Apple itself doesn’t offer.
Kaspersky also offers a hardened web browser for use while banking or shopping online, plus browser extensions that block malicious URLs and tracking cookies and advise you to steer clear of risky websites.
However, the best extra features are just teases. The password manager holds only 15 items. The parental controls are limited to a single child device without location tracking. The VPN service gives you only 300MB of data per day.
Unlimited versions of each cost $15, $15 and $30 per year, respectively, which isn’t terribly expensive, but Norton 360 Standard gives you two of those at no extra costs. At least Kaspersky doesn’t persistently try to upsell you on them.
Read our full Kaspersky Internet Security for Mac review.
Trend Micro Antivirus for Mac offers very good malware protection for a reasonable price, but it has a very heavy system impact during full scans.
If you can overlook that drawback, you’ll find ransomware protection for designated folders, webcam protection, a social-media privacy scanner and even a parental web filter. Trend Micro’s interface is a bit old-fashioned, but it works.
However, the program doesn’t really stand out when rivals such as Bitdefender and Norton offer more. You could certainly do worse than Trend Micro Antivirus for Mac, but you could also do better.
Intego has been making Mac antivirus software since 1997, and its Mac Security X9 offers very fast scans, thorough malware detection and a full-fledged firewall. The program also supports legacy macOS versions going all the way back to 2013’s Mavericks.
Intego Mac Security X9 is a solid piece of software that does its job well, even if its user interface is a bit bare-bones. You can even toss in effective Windows antivirus protection for a small extra fee.
But Intego’s relatively high price doesn’t quite match its sparse feature set. While other paid Mac antivirus programs might toss in browser extensions, a password manager or even a VPN to justify the purchase, Intego’s extra features aren’t too different from what you’d get with free Mac antivirus software.
Read our full Intego Mac Internet Security X9 review.
Sophos Home Premium can protect up to 10 computers, Mac or Windows, for a low price and its parental web filters can stop kids from seeing objectionable material online. It also has dedicated protections against ransomware and for your webcam and microphone.
Its background system impact is more noticeable than its competitors’, although nowhere near the system impact of some Windows antivirus products. It’s got a relatively small impact during active scans.
The interface is minimal and mostly lives in the menu bar; for more controls, there’s a powerful online management tool. Tech support is 12 hours a day, Monday through Friday, and limited to email and chat interactions.
We just wish we had some third-party lab-test data about the efficacy of Sophos’ Mac malware scanner, which might place it higher among the best Mac antivirus software programs.
Read our full Sophos Home Premium review.
McAfee Antivirus Plus’s generous 10-device license means you can provide antivirus protection for a whole family of Macs (and/or Windows PCs and Android phones) for a reasonable yearly fee.
But the program doesn’t have a lot of extra features for Macs, which makes it hard to recommend for Apple customers. All Mac users really get is a firewall, while Windows users get ransomware protection, cryptojacking protection and a system optimizer. McAfee Antivirus Plus also has a heavy system impact during scans and a confusing interface.
Furthermore, we don’t know really how well McAfee Antivirus Plus protects against Mac malware. There haven’t been any recent Mac malware-detection testing scores for McAfee, so its protection powers are impossible to compare with those of the best Mac antivirus software.
Read our full McAfee Antivirus Plus review.
Despite its fast scans, light impact on system performance, and bright, easy-to-use interface, Malwarebytes for Mac Premium feels half cooked.
The program doesn’t have many of the extra features its competitors offer, such as malicious-website blocking and email scanning. And because its malware-blocking skills haven’t been evaluated in lab tests, we don’t actually know how good Malwarebytes is at protecting your Mac.
However, we do recommend the free version, Malwarebytes for Mac. It is not truly antivirus software, but an excellent post-infection cleanup tool that also gets rid of the annoying adware and unwanted programs that antivirus software tends to miss.
You might want to let the two-week Malwarebytes Premium trial expire and instead use the free tier alongside some of the best Mac antivirus software.
Read our full Malwarebytes for Mac Premium review.
How to choose the best Mac antivirus software for you
First, figure out what you need. Do you have several Macs and Windows PCs at home? Then a multiplatform, multi-device bundle such as Norton 360 Deluxe, Sophos Home Premium or McAfee Antivirus Plus might be ideal. Bitdefender and Kaspersky also offer multiplatform bundles that come with the same software we’ve reviewed here.
Or do you have just one, two or three Macs? If so, there’s no need to go overboard: The one- or three-device versions of Bitdefender Antivirus for Mac or Kaspersky Internet Security for Mac should do you just fine.
Do you have young children or teenagers living at home? Consider Mac antivirus software that comes with parental controls or web-content filters, like Kaspersky Internet Security for Mac or Sophos Home Premium.
Then you have to figure out how much you can afford. If the answer is “nothing,” then try Avast Free Mac Security or the free tier of Sophos Home. The trade-off is that they aren’t as good as many of the paid programs.
But if you can afford to spend $50 a year, then you’ve got a lot of options. Most of the antivirus companies frequently offer discounts of up to 60%, both straight from their websites or through online retailers.
You’ll have to let them automatically charge your credit card the full price when your subscription ends, but you can often uncheck that option beforehand, or override it by buying another subscription on sale first.
How we test the best Mac antivirus programs
To find the best Mac antivirus software, we evaluate ease of use, interface and performance impact. We installed each AV program on the same Late 2013 MacBook Pro with Retina Display running macOS 10.12 Sierra. It was powered by a 2.6-GHz Intel Core i7 processor and had 8GB of RAM and 70GB of data stored on a 512GB SSD.
We conducted our own tests based on how much each of the best Mac antivirus programs affected our laptop’s performance. To do this, we used our custom OpenOffice benchmark, which matches 20,000 names and addresses in a spreadsheet. We measured how long it took to run a quick scan and a full scan while the laptop crunched numbers in the background.
We assessed how easy each of the best Mac antivirus programs was to use and the number of useful extra features it offered (including free add-on software).
To gauge how effective each package was at stopping malware, we used the results of evaluations conducted by AV-Test, a well-regarded independent product-testing lab in Germany, and results from other tests conducted by AV-Comparatives, a similarly well-respected company in Austria. (Both labs also test the best Android antivirus apps.)
iOS antivirus apps
A lot of people want iOS antivirus software for their iPhones and iPads. The truth is that such software doesn’t exist. Apple won’t let third-party apps examine other iOS apps, or even inspect new apps as they’re installed. Anything that claims to be antivirus software swiftly gets kicked out of the iTunes App Store.
Many major antivirus vendors, including F-Secure, McAfee, Norton and Trend Micro, do have “security” apps in the App Store. But these check web links for known malicious sites, locate lost devices or pretend to protect your privacy. None scans an iPhone for malware.
There has been real iOS malware that affects non-jailbroken devices, but it’s very rarely cropped up. In each instance, Apple has pushed out a new version of iOS to stop the malware in a matter of days or weeks. Generally, if you keep your Apple mobile device updated to the latest version of iOS, you should be safe.
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