Fundamental of Computer Security. Risk Analysis in computer security. Hardware and Software Security Control, Viruses. Encryption and Cryptography Techniques. Security Models. Telecommunication Security: Fundamentals, Issue, Objective and Threats, Security Services, Distributed System Security, The Trusted Network Interpretation, TNI Security Services, AIS Interconnection Issues, Firewalls (Gateway, Application, Cost and Effectiveness). Database Security: Security Requirements to Databases, Designing the Security, Methods of Protection, Security of Multilevel Database. Legal Issue and Current Legislation: Computer Crime, Software Violation, Crimes, Privacy Considerations, Corporate Policy, Managerial Issues, Government – based Security Standards. Secure software coding principles.