I came across an interesting review on the Mac App Store and was wondering if there was any validity to this person's statement. "1st, as an expert Unix engr, there are a few traits of Mac O.S. that one ought to know: 1) Mac OS is simply a desktop app, that sits on top of Unix. Unix uses a permission system on every folder and file, that allows optional access to owner, group, or everyone. 2) To protect one's self from malware, one can after intial setup, create a user w/admin authority and call it Admin or some such. Then take away admin authority from "one's documents." Also, by simply restarting the computer, any malware in the CPU, simply disappears. 3)Why is that important? Because the authors of Clam AV for Mac, apparently do not understand these concepts. Both the admin and limited user can only scan files w/in "<user name>/documents". 99% of the files on a Mac are outside of "/users/<admin>,<other user>/documens. What good is a antivirus scan, that has no access? Should a Mac user panic? No. Because, by virute of items 1 and 2, one is reasonably certain that they will never be bothered by a serious virus. The worst that can happen, would be the corruption of files under "documents". Which any prudent backup can repair quickly. Plus, operating under a limited user, malware cannot even instantiate itself on the hard drive. Recall every time one installs an app, Mac OS asks for a password? Well, if a virus attempted to write itself to the HD, guess what would happen?" (I think this guy needs to learn how to use commas appropriately ) If true, is there a way to deep scan a Mac OS X machine?