This course will focus on recent and emerging trends in information systems engineering. It will cover the notion of different types of securities: information security and computer Security: security goals, relation between security-confidentiality, integrity, availability and authorization, vulnerabilities- Principles of adequate protection, operating system security, database security, Program security, network security, program security, types of flaws, buffer overflows, virusesand other malicious code, targeted malicious code, controls against program threats.