Amazon.com just posted my four star review of At Large by David H. Freedman and Charles C. Mann. From the review:
"At Large" is a "hacking" book published during the mid-1990s, but it doesn't address the characters usually considered to be the "stars" of that era. Rather, At Large tells the tale of a single-minded and possibly mentally-challenged intruder who infiltrated a large number of sensitive US networks. While I didn't find the characters or story particularly compelling, I did note a number of points that remain true even today. For this reason you are likely to learn more from a book like At Large than a similar title, such as "Masters of Deception" (which I reviewed recently and gave 3 stars).