Initial book chapters deal with the essentials of computer security and computer crime and the law in various countries. Subsequent chapters cover electronic data processing security, information protection, personnel screening and management, physical access control, physical security, environmental security, and disaster control. Other chapters concern communications line and transmission security, cryptographic security, emanations security, technical security, systems identification, isolation in computer systems, systems access control, detection and surveillance, systems integrity, systems reliability and security, and personal computer security. Final chapters discuss a systems approach to risk management, threat assessment, assets and safeguards, how to keep secrets in computers, and risk analysis methods. Sample log forms for documenting computer security incidents are appended. References, tables, and figures