Editors' Note: KG: was Platform: Macintosh & Mac OS X 10.5 Intel. I'm experimenting as this is a product solr won't show as popular.
iAntiVirus is a free app that will scan for Mac-specific viruses and malicious software, both on your hard-drive and during real-time Web browsing. You access iAntiVirus through a menu bar icon, and the app can scan your Mac for current infections, with either a Quick Scan, a Normal Scan (longer but still relatively quick), or a Custom Scan of specific areas. You can set iAntiVirus to protect your Mac in the background (with a relatively modest resource footprint), and you can also schedule both scans and app updates every week, every day, or every other day, to make sure that you're protecting your computer using the most current virus definitions. Some anti-virus applications will scan for PC-specific threats as well (to make sure you're not passing on malicious software to PC users you interact with), but iAntiVirus is able to maintain a lower profile on your system by focusing on Mac threats only.
Arguably, the best anti-virus software for the Mac is already on your machine: the Mac OS itself, with its secure, Unix-based architecture and relative obscurity compared to Windows. There has never been a major virus or malicious software outbreak for OS X, so any antivirus app is of questionable usefulness--but iAntiVirus can provide some free peace of mind for anyone worried about future threats.
With iAntiVirus you are protected against the most nefarious cyber-threats attempting to gain access to your Mac and personal information. iAntiVirus provides free real-time protection and comprehensive system scanning to ensure your Mac remains safe and virus free. The iAntiVirus database has been designed from the ground up to detect and remove Mac specific threats. This enables a high level of protection whilst keeping memory footprint and resource usage at a minimum.
The iAntiVirus database is not cluttered with signatures for Windows specific threats which your Mac is already immune against. This means you get the protection you need without the extra resource required to process the threats that are not relevant your Mac. iAntiVirus protects you against Mac specific viruses, worms, Trojans, keyloggers, dialers, spyware, adware, toolbars and hijackers like the Mac DNS-Changer trojan. Version 1.2 improves performance and fixes conflict with Time Machine.