This document provides an outline and overview of the topics that will be covered in Section 2 (Ch.7, part 1) of the course CS 5950 – Computer Security and Information Assurance. The section will discuss security issues related to networks, covering both network concepts in part 1 and threats in networks in part 2. Part 1 outlines key network concepts including the basic components and layers of networks, common network protocols like TCP/IP and OSI, different types of communication media, and an introduction to distributed systems and network advantages. Part 2 will cover threats, vulnerabilities, and types of attacks that can occur in networks.