Network Cyber Security

Network security deals with all aspects related to the protection of sensitive information and assets existing in the network. It covers various mechanisms developed to provide fundamental security services for data communications. Network security consists of the policies, adopted to prevent and monitor unauthorized access, misuse, modification, or denial of a computer network or network-accessible resources. Network security covers a variety of computer networks, both public and private that are used in everyday jobs, conducting transactions, and communications among businesses, government agencies, and individuals. Network security is involved in organizations, enterprises, and other types of institutions.

Nowadays every organization relies on computer networks to share information within the organization. Organizational computer networks are very large and ubiquitous. Assume that each staff member has a dedicated workstation, then a large-scale company would have a few thousand workstations and many servers on the network. It is likely that these workstations may not be centrally managed nor would have perimeter protection. They may have various operating systems, hardware, software, and protocols with different levels of cyber awareness among the users. Now imagine all workstations are connected to the internet directly. This sort of unsecured network becomes the target for an attack that holds valuable information and displays vulnerabilities.

In this course, we particularly focus on network security threats, attacks, vulnerabilities, and countermeasures. Let's get started