[jdb8167]

"First, it prevents you from passing on Windows viruses that may be sent as attachments that you then guilelessly hand off to friends, relatives, or colleagues using an unpatched version of Windows. "

This theory has always intrigued me. How does this happen? If I'm on a Mac, how do I get Windows malware in an attachment that I then pass along to unprotected Windows users?

Did I get the attachment from one of those unprotected Windows users? And did I then copy the attachment to a new email and send it along without knowing what it was? Maybe a forward since this will automatically retain attachments in Mac OS X Mail. Forwarding something that I don't know what it is or does is not something most people would do I wouldn't think. If the bad attachment came from a phishing or spam message, why would I forward it?

Any Windows user who opens unsolicited attachments without having anti-virus installed is going to have far more issues than the unlikely occurrence that a Mac user passes along a virus laden attachment.

[macnuke]

I still when someone says "Macintosh" and "AV" with the words " useful in any way, shape or form."

AV on a Mac....
...uses HD resources.
...uses CPU resources.
...uses RAM resources.

like any application does, but it has these additional "features"

...does zero to protect you.
...hinders performance... sometimes alot, sometimes a little.. but still hinders.

and the #1 reason for you to install AV of any type.......

Profit for the AV company.

if you want a #2 reason..

a truly false sense of security for you.

[nw3227]

A question: Is McAfee for Mac compatible with FileVault 2 (in OS X 10.7.2)?