Spybot – Search and Destroy’s free version is completely awesome and unobtrusive and can run side-by‐side with your regular antivirus software. Spybot’s main function is to find and get rid of sneaky programs that often install themselves when you click advertisements or install free software with annoying or dangerous add‐ons.
The newest Mac operating systems have some pretty hefty controls when it comes to downloads, meaning nothing can be installed without permission (or that’s the way it’s supposed to work). Just in case, I use iAntivirus, a free app from Norton, to scan my MacBook Air.
AVG Free, Spybot and iAntivirus all made Beth’s Top Security list!