Browser Statistics
2014-——IE-——Firefox-——Chrome-——Safari-——Opera
March-—9.7%——25.6%-———57.5%-———3.9%-———1.8%
Feb-——9.8%——26.4%-———56.4%-———4.0%-———1.9%
Jan——10.2%——26.9%-———55.7%————3.9%-————1.8%
There’s your problem right there! The most used browser is also the one that is the least secure.
(Chrome, Safari, FireFox, IE, Opera in that order in 2011. Firefox has taken over the most exploited in 2014.)