Define Computer Network Security

Computer Network Security refers to the set of procedures, measures and technologies that are used to protect the integrity and privacy of data and resources present in a computer network. The aim is to prevent unauthorized access, misuse, malfunction, modification, destruction or improper disclosure, thereby creating a secure platform for computers, users and programs to perform their permitted critical functions within a secure environment.

Here are the steps to define Computer Network Security:

1. Understanding the Basics: Computer Network Security starts with the basic understanding that a computer network is a collection of computers and other hardware components interconnected by communication channels. These channels allow sharing of resources and information.

2. Identifying the Need for Security: The need for security arises from the fact that information and resources on the network can be exploited by unauthorized users or malicious software. This can lead to data theft, damage or disruption of network services.

3. Understanding the Components of Network Security: Network security consists of many components including anti-virus and anti-spyware, firewall, intrusion prevention systems (IPS), virtual private networks (VPNs), and more. These components work together to increase the overall security of the network.

4. Understanding the Goals of Network Security: The main goals of network security are to protect the confidentiality, integrity, and availability of data and resources on the network. This is often referred to as the CIA triad in network security.

5. Understanding the Threats to Network Security: Threats to network security can come from a variety of sources, including malware, hackers, and even insider threats from employees. Understanding these threats is key to developing effective network security strategies.

6. Implementing Network Security: Finally, network security is implemented through a combination of hardware devices, software programs, and security policies. These measures are designed to prevent unauthorized access, protect data, and ensure the availability of network services.