Commercial, personal and sensitive information is very hard to keep secure, and technological solutions are not the only answer. In today’s technology-driven environment, there is an ever-increasing demand for information delivery on various devices in the office, at home and in public places. A compromise has to be struck between security of information and its availability. This book provides significant first steps along the path of dealing with information assurance in a realistic and comprehensive manner. The second edition has been expanded to include the security of cloud-based resources. The remainder of the contents have been reviewed and reordered to reflect the changes to the BCS Certification in Information Security Management Principles which the book supports.