 Computer network security

Computer network security refers to the policies, practices, and technologies designed to protect computer networks and their data from unauthorized access, attacks, damage, and disruption. It encompasses a variety of measures and protocols to ensure the confidentiality, integrity, and availability of information transmitted over networks. Key components of computer network security include: 1. **Firewalls**: Devices or software that monitor and control incoming and outgoing network traffic based on predetermined security rules.