he is wrong though. Most so called virus's that infect windows machines get installed the same way one would get installed on a mac. By the user running the program as an admin. On a mac the user would just type in their password when the prompt comes up and it would install itself.
Mac users keep saying windows is inherently bad and mac cannot be touched. Thats not true. OSX is just as insecure as windows when it comes to the main thing that is getting installed on machines today.
Also a real antivirus does stop a trojan from even running. So as more of these trojans for mac appear having a virus scanner on a mac will help when it comes to users like parents who will just let anything run.
Let me break down your post:
1. You say i'm wrong but never actually point out any of my wrongful statements.
2. After saying i'm wrong, you start to talk rubbish about some "so called virus" when clearly i never said anything about a virus. If you see my post i talked about general malware which can contain a lot of clearly distinguishable categories (viruses, worms, trojans, spyware, backdoors, rootkits etc). Having said that i will however indulge and point out you are mislead into thinking that viruses (so called ?) infect the same way Macs as PCs running Windows. If you were talking about trojans you were probably right to some extent because as another poster pointed out before me a trojan is nothing else really than a lie and you can't fully protect yourself from a lie other than through safe computing and common sense. But i suspect you were talking generally because of your next paragraph which is completely and utterly FALSE. I will explain in #3.
3. OS X is generally much safer than Windows, as is Linux, just by fundamental design. OS X as Linux, it's derived from Unix which doesn't have any of the limitations or inherited weaknesses as Windows, as per the below examples:
the Windows Registry and the convoluted software installation mess related to it,
the Windows NT/2000/XP Interactive Services flaw opening up shatter attacks,
a wide open, legacy network architecture that left unnecessary, unsecured ports exposed by default,
poorly designed network sharing protocols that failed to account for adequate security measures,
poorly designed administrative messaging protocols that failed to account for adequate security,
poorly designed email clients that gave untrusted scripts access to spam ones own contacts unwittingly,
an integrated web browser architecture that opened untrusted executables by design, and many others.
4. In your last paragraph you get back to trojans (that's the reason i said earlier you are confused by what a trojan is, how it works and what a virus is). You tend to overlook some points from my earlier posts. An AV is generally as effective as the user is vigilant and as it has the latest up to date signatures. So and AV will never protect you from nothing from a 0 day attack. Think about it: AV companies have to be diligent enough to be on the lookout for Mac malware (which is little interest for them anyway because of a lower marketshare the Mac occupy in the world), but generally speaking first malware is released then AV companies are playing catchup. In that time period you WILL be fully exposed. Even after let's suppose you get the up to date signatures for the latest malware, if the user is too dumb (sorry for the blunt expression) to practice safe computing and common sense there is a chance the dumb user will force the AV software to overlook the warning or allow the program to run (if we talk about trojans) since for example he desperately wants to look at that porn app he just downloaded, app though which he can download unlimited porn movies.
So as you can see, as explained in my original post, AV software is NOT a magical barrier from heavens, un-passable, impenetrable, flawless in design, and perfect in function. It's just a pice of software and i said that ALL software is not perfect (OS X is not different).