Virtually all version of Linux (and Unix) contain a security hole that allows unauthorized users to gain complete control over the machine. By simply typing "root" at the login prompt and supplying a password from a limited number of possibilities, a malicious user can easily gain administrator privileges. This hole can be breached in seconds with only a dozen or so keystrokes...
We suspect this issue has been known to Red Hat and other Linux distributors for years and they have refused to acknowlege its existence or supply a patch preventing users from exploiting the "root" login loophole.

By ignoring the problem, the Linux community has proven that installing Linux is a dangerous proposition that could get you fired. We would like to point out that Windows XP does not suffer from this gaping hole... Tests conducted by both Ziff-Davis and Mindcraft prove that Windows XP is indeed the most secure operating system ever produced...