WHY WINDOWS OS VIRUS ATTACK?

Closely related to the network, so security is also important to have the OS. This is caused due to the growing network of communication and ease the process of distribution of files between computers.
May be compared with the network, then your computer like a house with doors and windows open so that guests can go visit. In this keandaan, shall be maintained from the side of safety so that no unwanted visitor arrivals, for example by setting the screen to prevent mosquito entry.
Implementation of "mosquito net" in the OS can be a user authentication, resource access rights, handling of ports, and firewalls. One of the mistaken opinion regarding the security issue is the OS immunity against the virus, if the current majority of viruses attacking OS windows, does not mean that OS can not be exposed to the virus.
In principle, the same virus software, and therefore if the virus was created in accordance with its particular operating system, then the virus has become an application running on the target OS, either OS is linux, mac OS X, windows or other OS.
Then why attack the virus more windows OS? This is not out of the market on the computer desktop OS that is currently dominated by windows, but it is also undeniable operating systems like unix / linux environment that has relatively more difficult to be penetrated by the virus, although no means guaranteed virus free.