Network security is a critical discipline that focuses on safeguarding computer networks, systems, and data from unauthorized access, cyberattacks, and breaches. It encompasses a range of measures, including firewalls, encryption, intrusion detection systems, and access controls, to protect the confidentiality, integrity, and availability of information. As businesses and individuals increasingly rely on interconnected digital infrastructure, network security plays a pivotal role in defending against evolving cyber threats. A robust network security strategy is essential to maintain trust, privacy, and the seamless operation of modern communication and commerce.