Various Proposed Futures Intelligent worms Zalewski, 2000 Modular worms Nazario et al., 2001 Warhol and Flash worms Weaver, Staniford et al., 2001 Curious Yellow Wiley, 2002 IM Worms Chien and Hindocha, 2003 Variations on a theme "Can't keep pace with a fast worm"