PROS / It offers real-time protection, scanning files as you access them.
CONS / It isn't as effective at detecting Windows malware threats as it is at identifying Mac viruses.
VERDICT / Intego Mac Security X9 offers a triple-pronged approach to antivirus software with its antiphishing feature, additional firewall and virus scanner to protect your Mac devices from online threats.
Editor's Note: Top Ten Reviews uses test results from the independent laboratory AV-Test as part of our review process for the best antivirus software. AV-Test looks specifically at malware detection and loss of performance on Mac operating systems, and it performs these evaluations several times throughout the year. We use the most current AV-Test scores available at the time of our review. It is possible that new AV-Test scores will be released after our review goes live on our site. We will consider those scores during our next review of the best Mac antivirus software.
Intego Mac Internet Security X9 is online protection designed exclusively for Mac devices. This Mac antivirus scanner took longer to install than other applications on our top 10 list. We had to initiate the download process three times before it was successfully installed, but once it was, it immediately began scanning and quickly found threats on our test Mac.
The independent laboratory AV-Test in results released in its December 2016 report showed that Intego successfully detected 96.8 percent of Mac malware threats. This is a decent rate and falls within the average rate of detection compared to other Mac antivirus applications.
AV-Test also evaluated Intego on how well it detected Windows threats on Mac devices. This is important because, while these threats will not affect your Mac, you don't want to inadvertently pass along a threat to PC users through email, USB files, etc. When releasing the results of this specific test, AV-Test only listed those solutions that scored within a specified, average range or above. Unfortunately, Intego wasn't listed among the Mac antivirus solutions that achieved high marks.
In addition to measuring protection, AV-Test assessed how Intego Mac Internet Security affected system speed once it was installed on a Mac test computer. According to AV-Test, system speed slowed by one minute. This may not be a significant amount of lag for most of the tasks you typically do on your home Mac, but it may be apparent if you are playing a game or watching a video.
As part of its malware detection capabilities, Intego automatically scans incoming emails and any USB drives that are plugged into your computer. This also includes mobile devices. In addition to malware protection, Intego Mac Security includes a firewall to enhance the one included with your Mac device. There are antiphishing tools to detect unsafe emails that could potentially trick you into giving your personal and financial information away.
Intego offers telephone support, but it's difficult to find these numbers on the website. Further, phone support isn't available 24/7 nor is it available on weekends.
You can submit a technical support request to Intego using an online contact form found on its website. There is also a robust online knowledgebase that lists answers to many common questions. Live chat is available if you need quick one-on-one assistance.
Intego Mac Internet Security X9 is good at detecting Mac viruses, but it struggles to identify and block Windows malware. It automatically scans incoming emails and attached USB drives that are connected to your device. It also has a firewall to bolster the one included on your device as well as antiphishing tools to make your online experience more secure.