need antivirus software
I need to purchase anti virus for OS10.6.8 Snow leopard. what is the best app?
iMac, Mac OS X (10.6.8)
Purchase no such product. Please read Effective defenses against malware and other threats.
Bearing in mind that while software alone cannot protect you or your Mac from all threats, upgrading OS X to the latest release is the only worthwhile software-based defense. There is no cost. To learn how to do that please read Upgrade to OS X El Capitan - Apple Support.