Helpful for Mac and PCs

Your PC friends will find this useful, too, according to Jim Hamm.  He begins with, "Here is a good article on antivirus programs. I've used the free version of Avast for years, both on PCs and Macs, and it's worked well for me." (Full article here.)        Jim adds,  "All the info in the article would apply to the Mac as well. Here is the link to a free download for the Mac."