This course provides a graduate-level introduction to computer and network security and privacy. Students successfully completing this class will be able to evaluate works in academic and commercial security, and will have rudimentary skills in security research. The course covers four key topic areas: basics of cryptography and crypto protocols, network security, systems security, and privacy. Readings primarily come from seminal papers in the field. A detailed list of lecture by lecture contents, assignments, and due dates (subject to change as semester evolves) is available on the course schedule.