Book excerpt: Government and companies have already invested hundreds of millions of dollars in the convergence of physical and logical security solutions, but there are no books on the topic.This book begins with an overall explanation of information security, physical security, and why approaching these two different types of security in one way (called convergence) is so critical in today's changing security landscape. It then details enterprise security management as it relates to incident detection and incident management. This is followed by detailed examples of implementation, taking the reader through cases addressing various physical security technologies such as: video surveillance, HVAC, RFID, access controls, biometrics, and more. - This topic is picking up momentum every day with every new computer exploit, announcement of a malicious insider, or issues related to terrorists, organized crime, and nation-state threats - The author has over a decade of real-world security and management expertise developed in some of the most sensitive and mission-critical environments in the world - Enterprise Security Management (ESM) is deployed in tens of thousands of organizations worldwide