If you’d like to know why, look no further than this page. The truth is, you should definitely install antivirus software on your Mac. However, if you have a Mac or a MacBook, the question of whether or not you should use antivirus software can become a little more complicated, due to the popular belief that Apple products are immune to viruses. If you’re looking to avoid computer viruses while surfing the web, installing antivirus software might sound like a no brainer.