Network information security, often shortened to network security or cybersecurity, refers to the processes, practices and technologies designed to protect computer networks and the data traversing them from unauthorized access, misuse, modification, destruction, or disclosure.

It encompasses a wide range of measures to ensure the confidentiality, integrity, and availability of information assets within a network.

Key aspects of network information security include:

• Confidentiality: Ensuring that sensitive information is accessible only to authorized individuals or systems.
• Integrity: Maintaining the accuracy and completeness of data, preventing unauthorized modifications or corruption.
• Availability: Guaranteeing that authorized users have timely and reliable access to network resources and data when needed.

Network security involves implementing various hardware and software tools, policies, and procedures to mitigate risks and vulnerabilities. These can include firewalls, intrusion detection and prevention systems, encryption, access controls, virtual private networks (VPNs), security audits, and employee training.

Essentially, network information security is about creating a secure environment where data can be transmitted, stored, and accessed with confidence, minimizing the potential for security breaches and protecting valuable assets from cyber threats.