Time to infection < 20 mins.
Time to patch > 20 mins.
Ergo, new XP system on network == hacked XP system on network.
http://it.slashdot.org/article.pl?sid=04/08/17/1347214&tid=172
Fooology: (1) the study of foo; (2) the science dedicated to the understanding of foo; (3) the study of the series of cannonical metasyntactic variable names ("foo", "bar", "baz"..).
