Usenet security?

Eugene H. Spafford (born 1956) (known colloquially as "Spaf") is a professor of computer science at Purdue University and a leading computer security expert. A historically significant Internet figure, he is renowned for first analyzing the Morris Worm, one of the earliest computer worms, and his participation in the Usenet backbone cabal. Spafford is a member of the President's Information Technology Advisory Committee (PITAC), has been an advisor to the National Science Foundation (NSF), and serves as an advisor to over a dozen other government agencies and major corporations.