With all the new security warnings about Macs needing virus protection, I thought it a good time to note an antivirus app I’ve used for a few years, now. Let’s start this tip off with a bit of a disclaimer, though. Please don’t sue me (or Cult Of Mac) if you use this free app and get a virus on your Mac, okay? Today’s tip is just that: a quick tip to make you aware of a free antivirus app that runs on your Mac and costs nothing. Your mileage, of course, may vary.