Ok, this one is completely for Thede, but if you’re interested in looking at finding spammers and other ne’er do wells using an economic angle. This a fascinating look into the minds of malware producers.
From the abstract:
“Computer security has recently imported a lot of ideas from economics, psychology and sociology, leading to fresh insights and new tools. I will describe one thread of research that draws together techniques from fields as diverse as signals intelligence and sociology to search for artificial communities. “