Zalewski, a security researcher who's made a name for himself finding and resolving network security flaws, explains how computers and networks work, how information is processed and delivered, and what security threats lurk. His narrative explores the nuts and bolts of modern-day computing to disclose real and significant lapses in computer security that are not well known or, in some cases, even understood by experts. Of interest to security professionals, hackers, students, and technophiles who want to understand how computer security fits into the big picture