hi,
wow, you may want to read this one...
Vast Spy System Loots Computers in 103 Countries
http://www.nytimes.com/2009/03/29/technology/29spy.html?_r=2&hp=&pagewanted=all
hint - use buymenot if you don't want to setup your
own user name on the system...
and
http://www.cl.cam.ac.uk/techreports/UCAM-CL-TR-746.html
best
matti