Sorry this may be a long read, I have a Macbook Pro with the latest software available, I want to download a virus scanning program from the App Store but the thing is, I don't know if that'll be a safe thing to do because when I had my Windows XP desktop I ran McAfee's virus scanning program it did find a few viruses but unfortunately it found this one that completely fried my computer I mean wiped it clean... All those files, baby photos etc. gone. So I am concerned that if it I did scan my Mac for any viruses that it might more or less share the same fate as my Windows XP. I did almost attempted to scan my Mac for viruses but my father-in-law (who has been using Apple products and computers for years) told me not to because it could potentially make things worse... basically I shouldn't do that. I personally don't think my Mac has any sort of viruses because it doesn't act funny or weird and it still is pretty fast when it comes to loading programs. For instance: When I am not running anything on my Mac (besides Finder) the memory is 2 GB+ of free space (because I am on Safari right now it's at 1.65 GB of free space) but I am a bit scared right now because I downloaded a 'foreign' map from Steam in-game, I deleted it I think. So overall Will it be safe to scan my Mac for viruses Also I know you probably see this a lot but is it possible for Mac OS to become infected with spyware, malware, etc.? Do such things exist? P.S. If it is completely safe to do so, what're some good virus scanning programs? Also, I am not the type to download or visit whatever I make sure that the sites I visit are safe and that the files I download are from a trustworthy source, heck I haven't even downloaded any music from any site other than iTunes lol.