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Network Security

Network security refers to the practices and technologies used to protect a computer network and its data from unauthorized access, misuse, modification, or denial of access. It involves both hardware and software solutions to secure the network infrastructure.

Network Security — illustration from Wikipedia
Image via Wikipedia

TECHNICAL DEFINITION

Network security encompasses the policies, processes, and tools deployed to safeguard a computer network's integrity, confidentiality, and availability from cyber threats, unauthorized access, and vulnerabilities, leveraging solutions like firewalls, intrusion detection/prevention systems, VPNs, and access controls.

BACKGROUND

The Cybersecurity and Infrastructure Security Agency (CISA) is a component of the United States Department of Homeland Security (DHS) responsible for cybersecurity and information technology infrastructure protection. It oversees all levels of the federal government and coordinates with U.S. states to improve cybersecurity against private and nation-state hackers. The CISA is headquartered in Arlington, Virginia.

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SYNONYMS & ALIASES

  • Network Defense
  • Cyber Network Security
  • Network Protection
  • Perimeter Security
  • Infrastructure Security

USAGE NOTE

In cybersecurity and defense, network security is foundational, often forming the first line of defense against external and internal threats to an organization's digital assets.

DEVELOPERS

Organizations developing technology related to Network Security.

  • Cisco Systems

    A global leader in networking hardware and software, providing a wide range of network security solutions including firewalls, intrusion prevention systems, VPNs, and advanced threat protection.

  • Palo Alto Networks

    A prominent cybersecurity company known for its next-generation firewalls and cloud-native security platforms that provide advanced threat prevention and network security across various environments.

  • Fortinet

    Develops and markets cybersecurity software, appliances, and services, such as firewalls, anti-virus, intrusion prevention, and endpoint security components, with a strong focus on integrated network security.

  • Check Point Software Technologies

    A pioneer in the firewall industry, offering comprehensive network security solutions, including next-generation firewalls, advanced threat prevention, and unified security management.

  • Sophos

    Provides a wide array of network security products and services, including firewalls, secure web gateways, email security, and unified threat management solutions.

  • Juniper Networks

    Offers high-performance networking and security solutions, including firewalls, intrusion prevention systems, and advanced threat detection platforms for various network environments.

  • Zscaler

    A leader in cloud security, providing a Secure Access Service Edge (SASE) platform that delivers network security as a service, securing user and application access from anywhere.

  • Trellix

    Formed from the merger of McAfee Enterprise and FireEye, Trellix offers a comprehensive portfolio of cybersecurity solutions, including network detection and response, and threat intelligence.

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