Overview: Network security is the practice of protecting computer networks and their components from unauthorized access, attacks, misuse, and data breaches. This includes safeguarding both the hardware and software systems that make up a network, as well as the data and information being transmitted across the network. The primary goal of network security is to ensure the confidentiality, integrity, and availability of data, as well as to maintain the overall security of an organization's network infrastructure.

In today's digital age, where businesses and individuals rely heavily on interconnected systems, network security has become a crucial aspect of protecting sensitive information and ensuring the proper functioning of networks.