...I'm new to mac...it will be here Tuesday. I've googled, and heard, gotten mixed answers. Do I need any 3rd party spyware/virus scanner? I've been using windows since I touched a computer back in 1996: and I've had my share of viruses/spyware. literally just 10 minutes ago I got a Trojan (and i didn't even download anything, does this happen on mac???) that my virus scanner auto detected!