Comment Re:70% on fully updated installs. (Score 1) 373
The report only shows how many machines were running each browser or OS on the infected machines. They don't report how many machines in total had those browsers or OSes. So it may be that 100% of the Win98, Win2k and Win2003 installations were infected but they represent such a small subset of the total userbase that the percentages in the pie charts are also relatively small.
Additionally, the browser report doesn't break out different versions of IE and Firefox. The fact is a lot of people are still using IE7 and maybe even IE6. IE8 is an improvement and IE9 even more so. Likewise, I still see a number of FF3 users and FF4 users. I would lump FF5 through FF7 together because, really, wth not. Practically the same anyway. But FF5+ represents an increase in safety over FF4.
I would have liked to have seen relative infection rates within each browser and OS version. That is, it's nice to know the percentage of infections that involved Windows XP, but I would also like to know what % of Windows XP users became infected. Even then you aren't controlling for varying levels of user experience and ability to avoid infection, or anti-malware installations, but I suppose there are limits to all data collection.