Anyone tasked with the duties involved in maintaining computer security on desktops, laptops, the networks connecting these devices and in a limited sense phones operated in the vicinity thereof these devices would benefit from this book. Recent "smart" telephony is not extensively covered (page 17-18 covers blue and red boxes, though), but some hacks persist in concept and what's more thoroughly discussed would be such topics as intrusion detection, forensic detection and recovery, finding the source of a malware program, wireless system securing, automated attack tools, encryption and tunnelling techniques, passive information gathering and the analysis of network traffic (with tools like Wireshark).