If you check Frys.Com now and again, you can usually pick up security software free. Normally with a manufacturer rebate, so you pay up front, but in about 60 days, or that's been my experience, you will get your rebate. I used that for Kaspersky and again for BitDefender. I just purchased Webroot from them for $14.99 and it's licensed for 3 computers, Mac or PC (and I have both) and no rebate hassle involved. Seemed like a fair deal so... we'll see. I'll be putting it on the Surface Pro, initially anyway, to see how it does. I'm currently using the BitDefender Free product and I'm actually quite pleased with that. Hardly notice it's there (hope it is??!).