I've been a Mac user for a long time. I've read a lot of threads about virus software and I spent a little bit of time searching before I read this. I've never used virus or anti-malware software on any of my Macs and I don't find it to be a necessity. Yeah, I know there is malware, but sensible computing habits do a better job of defeating those than running software that sometimes resemble a virus more than most viruses. I've found myself in a situation where the only way I can access an employers network with my trusty Macbook Air is if I run some kind of virus software. They don't seem to care what I run, I just need to run something. I'd like advice on what is going to be the most unobtrusive option. Something that stays out of my way, doesn't use up my processor cycles and "just works". It would also be nice if it was free or cheap. Please don't use this thread to debate whether Apple users need to worry about that. There are tons of threads where it's been debated to death. Let's try to keep it to "If you MUST run virus software, whats the best option". Thanks in advance.