3 Totally FREE Antivirus for Mac OS X

[image courtesy of Oliver Hammond]
There is an increasing number of commercial antivirus for Mac such as Norton, Kaspersky, etc. We love free downloads. Here are the 3 free antivirus for Mac works on Mac OS X Snow Leopard.
(Yes, only 3. There are not many choices when it comes to FREE Mac antivirus.)
Table of Contents
Does Mac OS X need to install antivirus?
Short answer: Yes.
Long answer: read the quote I found on ClamXav website:
Firstly, there’s no guarantee that we Mac users will continue to enjoy the status quo, but more importantly, the majority of the computing world use machines running MS Windows, for which an enormous quantity of viruses exist, so we must be vigilant in checking the files we pass on to our friends and colleagues etc.
Read on for the free antivirus for Mac OS X Snow Leopard.
ClamXav 2.0

ClamXav 2.0 Beta — One of the oldest and free Mac antivirus. Based on ClamAV open source antivirus engine. Protect against85,0000 threats. No background protection by default (need to enable it).
Sophos Antivirus for Mac Home Edition

Sophos Anti-Virus for Mac Home Edition — New in 2010. Protects against, both Mac and Windows, 211,1053 threats. Run in background. Automatic virus database update. I am using this. (read my review)
iAntivirus

iAntivirus — Protects against 116 threats specified for Mac OS X. Run in background. Antivirus engine last updated in 2009 (read: outdated).
Want better anti-virus protection and don’t mind to pay? Check out the antivirus software discount on Amazon.com.
Malwares are the real threat. And, Antivirus can only defense against known and outdated viruses.
the antivirus listed also defense against malwares.
Destroy is always easy than build. it is very easy to write a malware that can bypass all antiviruses..
Pretty interesting post. I have an antivirus installed in my macbook pro but I hardly use it. I agree the threat is always there but not to the same extent as a Windows operating system :)
I let the antivirus run in the background to scan files before I transfer to friends :)
And Comodo Internet Security is free not only for mac users