By design, the Mac operating system is more secure against the threat of viruses and malware, but there are still plenty of ways for malware to find its way in. While it’s true Macs are more secure than PCs, they’re still vulnerable to viruses, and they always have been. Apple itself even reassured its customers for years that Macs “don’t get viruses.” It even said so in a series of commercials that first aired in 2006. Historically, Mac fans have touted their platform as immune to the kinds of data attacks and other hostile intrusions that plague the Windows world. If you’re a Mac user, you get mixed messages about whether viruses and other malicious software pose a bona fide threat.