Well that's debatable and many hard core Linux users would beg to differ.  The major Linux distributions have matured to the point that they are quite usable as everyday desktop operating systems now and in many cases are actually better than their proprietary counterparts.  However, some people do enjoy Windows and/or need it for their day job so perhaps there is middle ground for these folks.  After all people probably want to experiment and/or test a bit anyway before making the big switch permanently.

You might be asking yourself why is he doing an article on securing Linux? I thought Linux was already secure. The truth is Linux is very secure. When compared to Windows, Linux has less viruses, less critical vulnerabilities, more frequent updates, faster security patches, no spyware, and the list goes on. The fact is that design of Linux (modeled after UNIX) is more secure from the ground up. So why then write this article? Read on.