While 61% of the defacements may have been on linux boxes, the percent of linux webservers that get defaced is less than the percent of windows webservers that get defaced because linux/unix webservers make up about 70% or more of all webservers. Also, while there may have been similar linux worms if the majority of people had run linux it would be easier to get a patch. Because MS is closed source there was only one place to patch your computer and when that system went down everyone was screwed. With linux, however, there are many more people working with the O/S so the problem would be fixed faster and more efficiently.
Slashdot Mirror
While 61% of the defacements may have been on linux boxes, the percent of linux webservers that get defaced is less than the percent of windows webservers that get defaced because linux/unix webservers make up about 70% or more of all webservers. Also, while there may have been similar linux worms if the majority of people had run linux it would be easier to get a patch. Because MS is closed source there was only one place to patch your computer and when that system went down everyone was screwed. With linux, however, there are many more people working with the O/S so the problem would be fixed faster and more efficiently.