Computer security in the business environment can often seem a quagmire in which constantly changing hardware, networks and software seem to create new problems all the time. The International Handbook of Computer Security is designed to help information systems/computer professionals, as well as business executives, who have to protect their organization "s computer systems and data from a myriad of internal and external threats while simultaneously ensuring it does not impact on productivity or work flow. Practical and thorough, the book addresses a wide range of computer security issues ranging from the hardware through software to the people involved. The revised edition of this vital reference covers: security policies; physical security procedures; data preservation and protection; hardware and software protection and security; personnel management and security; network security, internal and external systems; contingency planning; legal and auditing planning and control and more.