anonymousdude: Linux has all but idiot-proof security, low-level exploits are very difficult, there are package repositories that have everything you could ever need without resorting to potentially untrustworthy 3rd party downloads, and they were doing Microsoft's UAC long before Microsoft, and far better and less annoying. Not to mention, they have a far better scheme for handling execute bits and possible remote execution of arbitrary code. An OS is only as good as the idiot who's using it, but Linux has done by far the best job of idiot-proofing an OS, if it hits 99% marketshare, it will still have a fraction of the problems Windows and OSX do, and there are viruses for OSX, ask Apple who recommend MULTIPLE antiviruses be installed on Macs. Out of tens of thousands of free, open source Linux packages, there are hardly any antiviruses or firewalls even available for Linux, because it is actually for real, not necessary. No shit...