Nihil is right that if the person setting it up has no idea what they are doing then it probably will not be secure, however... I do believe that open source gets patched much faster because many more people see it. Where as with Windows even if they have a developement team of say, 100, they are not nearly as numerous as the people who look at open source material, they are most likely also focusing on release dates, and that type of thing, and security is less important than does it work, and will it not crash every few minutes. I do comment them on XP Pro, it has been more stable for me, until I killed it and put RedHat on .