Intego VirusBarrier remains my personal favorite anti-malware app for Mac. But here's why I knocked off one star: (1) When you allow it to use Real-Time Scanning without 'Scan on low priority', it literally eats your system calls alive. Nothing else is allowed to run, creating the worst possible 'Sit&Spin' scenario. So, don't do that unless you ONLY want VirusBarrier running. Note that unless you're doing something questionable, there is no point in using Real-Time Scanning on a Mac anyway. If you're downloading stuff that could potentially be Trojans or scamWarz crap, then use it! (2) When VirusBarrier does find something bad, it doesn't provide ANY method of canceling out of either Trust what it found, or Repair (aka kill) what it found, or if you have Real-Time Scanning on, shoving the thingy into Quarantine. Those are your only choices. You cannot cancel out of those choices. You cannot Quit the app. You're forced to Force Quit! I've gone over this lousy situation with their tech support twice at this point. But for whatever reason, possibly to prevent malware from killing this mode, they won't change this feature. It can get a bit infuriating. They also never provide a list of what malware protection is provided with updates or what malware the app protects you from as a whole. That's of course due to anti-malware being a competitive UN-scientific business by default, which is annoying but inevitable. - - Otherwise, I love this app. It is frequently updated. It has frequent new malware definition updates. It's fast at scanning after its initial scan of a system. - - I also never buy the yearly malware subscriptions at the standard price. Never. It always goes on sale somewhere or other. This week I got a dirt cheap extra year's worth as part of upgrading Parallels Desktop. Last year I got 3 years worth of updates for dirt cheap as part of a software bundle. Keep an eye out for discounts!