NetBarrier is essentially a firewall, regulating which applications installed on your Mac - including NetUpdate and VirusBarrier - can access the Internet. Windows malware can't infect Macs, but it can spread through them stopping it on a Mac helps curb malware infections.

Intego Mac Internet Security X8 also detects Windows malware. NetUpdate is a simple list of virus definitions, which identify malware and are regularly updated as new malware is found and documented. Avast, Bitdefender, ClamXav and Sophos have similar features. In addition to the scheduled and on-demand scans, the program also scans files in the background when you access them. VirusBarrier lets you schedule scans, as do Sophos and ClamXav. You’ll have to choose one when you first launch VirusBarrier, as well as decide whether VirusBarrier will scan your archives. VirusBarrier, the anti-malware protection component, has Minimum, Standard and Maximum protection settings. These features aren't as extensive as those for PC antivirus, but they're among the best in the Mac antivirus products we tested. In September 2020, Intego also released a Windows version of the security and antivirus suite.The applications in Intego Mac Internet Security X8 focus on malware protection and managing your Internet traffic. In July 2018, Kape Technologies announced the acquisition of Intego to 'enhance arsenal of products in cyber protection for iOS.' Intego released its current X9 version of antivirus and security software in June 2016. The company launched a podcast in October 2017, called the Intego Mac Podcast.

Intego launched The Mac Security Blog, a blog that covers Mac security news, Apple security updates, Mac malware alerts, as well as news and opinion pieces related to Apple products, in mid-2007. Then in October 2000, Intego released its legacy antivirus software, VirusBarrier 1.0, for Mac OS 8 and Mac OS 9. Two years later in July 1999, Intego released NetBarrier, the first personal security software suite for Mac OS 8. Co-founded by former CEO Laurent Marteau and Jean-Paul Florencio and based in Paris, France, Intego released its first antivirus product in 1997: Rival, an antivirus for Mac OS 8.

Intego mac internet security x