PREFACE

Information has been important for a very wide variety of reasons and for as many centuries as man has been able to pass valuable data to another person. The location of the nearest water hole, herd of wild animals or warm cave was a carefully guarded secret that was only passed on to those with a need to know and who could be trusted not to divulge the information to other, possibly hostile, tribes. The method of transfer and the storage of such information were, perhaps, rather more primitive, but the basic principles of information security have not changed too much since those days.

Information assurance is now well founded in three major concepts – those of confidentiality, integrity and availability. Managing these concepts is ...

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