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 main objective of computer network security is to prevent unauthorized access, theft, damage, or interference with the network and its associated data.

Here are the steps to define Computer Network Security:

1. Understanding Computer Networks: A computer network is a set of interconnected computers and devices that share resources and data. This includes everything from small local networks, like a home or office network, to large scale networks like the internet.

2. Understanding Security Threats: Security threats can come in many forms, including malware, spyware, phishing attacks, hacking attempts, and data breaches. These threats can lead to loss of data, damage to hardware or software, and unauthorized access to sensitive information.

3. Understanding the Importance of Network Security: Network security is crucial to protect the data and resources on a network. This includes protecting the network infrastructure itself, as well as the data that is transmitted over the network.

4. Understanding Network Security Measures: Network security measures include the use of firewalls, antivirus software, intrusion detection systems, and encryption. These measures help to detect, prevent, and respond to security threats.

5. Understanding the Role of Network Security Policies: Network security policies are rules and procedures that govern how a network and its resources are used. These policies can help to prevent security breaches and ensure that the network is used in a secure and responsible manner.

In conclusion, Computer Network Security is a critical aspect of any computer network, designed to protect the network and its data from a wide range of security threats.