Internet Security Systems has published its security report for the first quarter of 2002. IDG has an article on it:

IDG: Server port 80 plagues Internet security

The report can be found at:

One interesting quote in the article:

"The events of 9/11 had no apparent effect on malicious Internet activity, but interest in security was up. Thus far, there have been no cyber attacks that we can relate directly to the physical attacks of 9/11"