I've always been anti-companies that don't do anything.
On the Mac it doen't need anti-virus and Norton Disk Utilities can severely brake your hdd. Symantec is actually discontinuing their Mac Utilities, I've heard.
On Windows boxes, Anti-virus isn't needed either. Why? Because Microsoft has Virus security patched months before viruses come out, it's just on one applies these patches. I do. Therefore I don't get these viruses (neither did my roomate, booya). So why pay money for something Microsoft delivers right to you. Plus NortonAV needs to be updated, just like Windows Update. My mom's computer has like 4 viruses on it that Norton can't see, because she doesn't update it like she doesn't use Windows update.
And for AV programs to be of any use, they need to be running all the time, constantly scanning files. This drastically affects performance. Some programs cannot run with AV programs on. That's my spiel.
