If you open email that you don't recognize who they are from, then yes you need protection on it, but not norton. They sell a antivirus protection for it at best buy. They say its better than Norton, because Norton doesn't fully protect your computer. I didn't buy it, because I have never downloaded a virus onto my computer, or open emails from address I do not recognize. My friend did that once on her mac pro and it got a virus. Even the sales person at best buy said if you don't do that kind of stuff than the antivirus protection is not needed, but if you do visit websites you don't know, or do more on your laptop then just emails and Facebook and iTunes, then you would need it.