Here is an outstanding opportunity to learn about computer viruses from the internationally acclaimed pioneer in the field who actually coined the phrase "computer virus." This new edition of Cohen's classic work has been updated and expanded to nearly double its original size and now includes entirely new chapters on LAN viruses, international viruses, and good viruses (including code). As entertaining as it is thorough, the text is enlivened by Cohen's down-to-earth wit and his many fascinating anecdotes and heretofore unpublished historical facts about viruses. Both broad in its coverage and deep in its consideration, it includes dozens of lucid explanations and examples that amicably guide the reader through the complex, often convoluted subject matter. Hailed as a tour de force, Cohen's discussion of defensive strategies reveals many of the stumbling blocks that often trip readers up.