The practice of defending, information from unauthorized access, use and disclosure along with destruction of data is known as information security. This defense mechanism is also known as InfoSec. This technology is widely used across the globe by various industries like hospitals, military etc. From theories to research to practical applications, case studies related to all contemporary topics of relevance to this field have been included like its different procedures and techniques of management. This book also outlines the threats that are common to data and information like software attacks, Trojan horses, viruses, worms, etc. The extensive content of this book provides the readers with a thorough understanding of the subject. It is a vital tool for all researching and studying this field.