Microsoft Windows has been and always will be the target for malicious code writers (hackers) due to its popularity in the market. After all, Windows accounts for as many as 90 percent of the machines globally, which makes it an obvious target for hackers. There has been an abundance of worms and viruses (among other attack schemes) that sometimes makes Windows a miserable platform. It?s not entirely Microsoft?s fault, since almost all software contain vulnerabilities especially the more complex programs, but in a large sense the buck stops with the software giant.