"Network security" encompasses a set of policies, practices, and technologies aimed at protecting networks from unauthorized access, misuse, or destruction. It includes various components, such as firewalls, intrusion detection systems, and encryption methods, designed to safeguard both hardware and software. Network security practices also involve regular updates, access controls, and monitoring to identify potential vulnerabilities and threats. By creating a secure environment, organizations can ensure the confidentiality, integrity, and availability of their data and systems while minimizing the risk of cyberattacks.