This past Tuesday was Patch Tuesday for Windows XP users like
me. There were also a bunch of anti-spyware, anti-virus, and a
bunch of other stuff that had me rebooting my Windows PCs a
bunch of times over the past few days. So, with my Mac user hat
on, I read the following Symantec web-article with great
interest: Mac OS X: Viruses and Security that says (in part)
Let’s start with the hot-button issue of Mac OS X viruses.
Simply put, at the time of writing this article, there are no
file-infecting viruses that can infect Mac OS X.