Wondering whether you need antivirus software to protect your Mac? MacOS is more Bitdefender Antivirus for Mac comes with the most advanced cybersecurity technologies in the world As we've explained above, it's certainly not an essential requirement to install antivirus software on your Mac.
The answer depends upon how you work and have your system set up. If you download files to your virtual machine and visit websites within Windows, then you need anti-virus and anti-spyware software for you PC side. Your Mac software cannot adequately protect Windows.
If you keep your Mac and PC Virtual machines completely separate and never access the internet on your PC side (turn off all networking access to Windows through Parallels), and never update your PC software, you can avoid running PC protection software (or only run it when you update the software running on the PC side).