Unfortunately, the rumor that Macs can't get infected has left many people vulnerable over the years to threats. It's long been said that Macs are less vulnerable to attacks than their PC rivals, so is antivirus necessary for a Mac? Do Macs get viruses? Unfortunately, many Mac users still think their Macs are virus-proof, and you'd be forgiven for thinking so, too, with all the conflicting information online. Have you been wondering, “do I need antivirus for my Mac?” Well, you're not alone.