I would argue that typical desktop linux distros are as difficult if not more to secure than desktop windows. It's hard to keep track of the current state of t

I would argue that typical desktop linux distros are as difficult if not more to secure than desktop windows. It's hard to keep track of the current state of things, but issues that come to mind are, all of the design issues with X, such as poor isolation of applications, X server typically running as root. Desktop apps are typically not deployed with SElinux. Compromised apps can generally access all of the users' data. Something like ChromeOS on the other hand, is pretty secure, but that is a whole different beast.