Just wanted to say that I really enjoy the generalist security articles on your blog. Please keep them coming. I'm surprised they don't stimulate more discussion and suggest you link to a specific thread at the end of each one.
I was a bit surprised by Jeff's mild stance on the importance of virus scanning in this article
. Whilst I agree that it is relatively less important than other measures in terms of personal protection, I think it is everybody's collective duty to do all they can to avoid proliferating malware even if they are personally invulnerable to it.
Sophos published what I think is a reasonable clarification on that Jeff thought sensationalist. Mac users should, as Sophos puts it, "be a responsible member of society" and avoid passing on infected files even if they are benign as far as their Mac is concerned.
I used to have a cavalier attitude toward anti-virus software on my Mac until I started thinking this way.
Just my 2¢.