Winkler is the "anti-Mitnick", the ultimate "white hat". He physically and technically "broke into" some of the largest companies in the world investigating crimes against them, and afterwards, as part of his job as a high-level employee of the government or huge security consulting companies, told them how to cost effectively protect their information and computer infrastructure.
These are the riveting, true stories and case studies of how he did it and how to prevent what he did. The US Defense Information Systems Agency uses several of his case studies as training for undercover US government operatives.
