Schweitzer Douglas Securing the network from malicious code : a complete guide to defending against viruses, worms, and trojans / Douglas Schweitzer. - Indianapolis, Ind. : Wiley Pub., c2002. - xxii, 338 p. : ill. ; 24 cm. Includes index. ISBN: 0764549588 Subjects--Topical Terms: Computer networks--Security measuresComputer viruses--Prevention LC Class. No.: TK5105.59