Network security is the process of protecting the integrity and confidentiality of data that is transmitted across a network. It includes the hardware, software, and procedures that are used to protect data from unauthorized access.
There are three primary goals of network security:
1. To protect the confidentiality of data that is transmitted across a network.
2. To protect the integrity of data that is transmitted across a network.
3. To protect the availability of data that is transmitted across a network.