
Network security refers to the policies, practices, and technologies used to protect computer networks and data from unauthorized access, misuse, malfunction, modification, or destruction. In the field of Information Technology (IT), it ensures the confidentiality, integrity, and availability of information as it travels across networks.
It involves several measures such as firewalls, encryption, antivirus software, intrusion detection systems, and secure network configurations to safeguard data and systems from threats like hackers, viruses, malware, and cyberattacks. Effective network security helps maintain trust, supports business continuity, and protects sensitive information within organizations.
- Teacher: Lawrence Njoroge