Security is, along with market share, one of the most relevant aspects of the face-off between Linux, Mac OS X and Windows. And although Microsoft's proprietary operating system wins by a landslide in terms of install base, while Linux and Mac OS X struggle to gather an audience, the two rival platforms have always boasted superior security. But while the number of users of a certain operating system can be easily
approximated, not the same can be said about security. In fact, security is a multifaceted characteristic for which a variety of factors have to be taken into consideration, starting from the threat environment to the volume of vulnerabilities.