Why is it free?

In reply to busterb. I have been using the Sophos for Mac Free Edition for a week, working flawlessly. I am a fairly new Mac user, not much of a techie, not of the computer generation so this is my personal experience. I feel that Sophos free works for me the same way as Avast Free when I was using a PC. I have no requirement for the intricicies of the commercial/enterprise or paid version of the software. Until Sophos, the only free Mac AV was ClamXav which has no on-access scanning as far as I know. Sophos installed perfectly, the scan of my whole drive shows no infected files, the updater, on-access scanner work, as far as I can see, the way the manual says, with very little system slowdown (booting up my iMac G4/800 takes an extra 30 sec.). As a Mac Tiger PPC user, I am thankful for a company who creates software for us as well as the newer OS + hardware. I think we are getting quite adequate protection as Mac users with Sophos.

In reply to busterb. I have been using the Sophos for Mac Free Edition for a week, working flawlessly. I am a fairly new Mac user, not much of a techie, not of the computer generation so this is my personal experience. I feel that Sophos free works for me the same way as Avast Free when I was using a PC. I have no requirement for the intricicies of the commercial/enterprise or paid version of the software. Until Sophos, the only free Mac AV was ClamXav which has no on-access scanning as far as I know. Sophos installed perfectly, the scan of my whole drive shows no infected files, the updater, on-access scanner work, as far as I can see, the way the manual says, with very little system slowdown (booting up my iMac G4/800 takes an extra 30 sec.). As a Mac Tiger PPC user, I am thankful for a company who creates software for us as well as the newer OS + hardware. I think we are getting quite adequate protection as Mac users with Sophos.