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Network Security refers to the practice of safeguarding networks and data from unauthorized access, use, disclosure, disruption, modification, or destruction. It is an essential aspect of technology that encompasses various measures aimed at protecting network infrastructure and resources from both internal and external threats. Network security involves a multi-layered approach, incorporating hardware, software, policies, and procedures to deter cyber attacks, detect intrusions, and respond to incidents. It includes the implementation of firewalls, antivirus software, access controls, encryption, intrusion detection systems, virtual private networks (VPNs), and other security tools. Network Security also entails continuous monitoring, assessment, and improvement to ensure that sensitive data remains confidential, available, and intact. Ultimately, Network Security is a critical component of modern technology, enabling organizations to operate securely and efficiently in an increasingly connected world.