And on a scarier note... bigger botnets than we heretofore imagined.
Seriously, kiddies, this is some scary stuff. One of these is estimated at over 200,000 zombie machines, and they say bigger and scarier ones are on the way.

From the article:

Botnets are no longer just annoying, spam-pumping factories -- they're big business for criminals. This shift has even awakened enterprises, which historically have either looked the other way or been in denial about bots infiltrating their organizations. (See Bots Rise in the Enterprise.)

"A year ago, the traditional method for bot infections was through malware. But now you're getting compromised servers, with drive-by downloads so prevalent that people are getting infected without realizing it," says Paul Ferguson, network architect for Trend Micro. "No one is immune."

If you don't know what a botnet is, go here.


Link