The book covers a wide range of topics from identifying potential weaknesses in data communications networks to ensuring that security controls are not circumvented, from creating a system for user clearance and data classification to balancing operations and productivity with security and control. Subjects examined in depth include closed and limited-access networks, office automation systems, personal computer protection, security monitoring and feedback, access control software, and database security. Among the contemporary issues discussed are trends in computer fraud and industrial espionage, software piracy, automation of information security policies, personal identification devices, and ways to cope with advancing technology. Numerous examples, charts, and graphs. (Publisher abstract modified)