Well, I didn't see the figure take into account the penetration of PC and Broadband in various countries. Hong Kong is very connected, so you'd expect it's per capita infection rate to be higher as there are more machines on more of the time with more bandwidth. I'd expect BB to have spread wider in Europe than US looking at the comments about rural areas in the US, whereas well over 90% of the UK has BroadBand capability. I'm sure someone has the figures... I think what the figures show are that Europe is more connected (and has more bandwidth overall) than the US, and so there are more vulnerable people online here, and each person is more vulnerable thanks to thicker pipes and even thicker sysdamins at the ISP :-)