Hi folks, first post here. Gotta say, I really appreciate how helpful and courteous everyone is. Well done! Anyhow, I am a PC user looking to buy an iMac. It is often said that OSX does not suffer from viruses or other malware (which I'll call, collectively, "malware") and that there is therefore no need for protective software. As you can imagine, as a forever PC user I find these statements rather incredible. How can this be? It is not credible that malware authors simply love Apple products and their users and therefore don't write their juju for OSX. So there must be immunities inherent in OSX. Can someone describe what they are? I am a layman not a programmer or anything, so a layman's response/explanation would be both appropriate and welcome LOL. A basic how does this work will do. Thanks, and I'll probably be checking back with more questions.