Lectures on part 1 to 5 for introduction to Information Assurance and Security. Lecture 1 gives an introduction about Information Assurance. Lectures 2 and 3 talk about security information and event management, various types of access control (MAC, DAC, and RBAC) and a discussion of firewalls and intrusion prevention. Lecture 4 discusses on how to develop a security program, including policies, standards, and guidelines. In lecture 5, the lecturer tackles network and system threat modeling using attack tree examples. Read more about Part1: Introduction to Information Assurance