// THREAT DETECTION AND DATA PRIVACY TERM

Cyber Defense

Cyber Defense refers to the actions and strategies used to protect computer systems, networks, and data from cyberattacks, unauthorized access, and damage. It involves both preventing attacks and responding effectively when they occur.

Cyber Defense — illustration from Wikipedia
Image via Wikipedia

TECHNICAL DEFINITION

Cyber Defense encompasses a comprehensive set of cybersecurity strategies, technologies, and operational practices employed by organizations, nations, and critical infrastructure to safeguard information systems, networks, and data against cyber threats, intrusions, and malicious activities, ensuring integrity, confidentiality, and availability while enabling resilience and rapid incident response.

BACKGROUND

The United States Cyber Command (USCYBERCOM) is one of the eleven unified combatant commands of the United States Department of Defense (DoD). It unifies the direction of cyberspace operations, strengthens DoD cyberspace capabilities, and integrates and bolsters DoD's cyber expertise which focus on securing cyberspace.

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SYNONYMS & ALIASES

  • Cybersecurity
  • Network Defense
  • Information Security
  • Cyber Protection
  • Digital Defense

USAGE NOTE

In the military and intelligence sectors, cyber defense is critical for protecting classified information, command and control systems, and national infrastructure.

DEVELOPERS

Organizations developing technology related to Cyber Defense.

  • Lockheed Martin

    A global aerospace, defense, security, and advanced technologies company with significant involvement in cyber defense solutions for government and military clients, including threat intelligence, incident response, and secure systems development.

  • Palo Alto Networks

    A leading cybersecurity company providing a comprehensive platform for enterprise network security, cloud security, and security operations, deeply focused on preventing cyberattacks and defending critical infrastructure.

  • CrowdStrike

    Specializes in cloud-native endpoint protection, threat intelligence, and incident response services, offering a platform built to detect, prevent, and respond to cyber threats across endpoints, cloud workloads, identity, and data.

  • Raytheon Technologies (RTX)

    A major defense contractor that develops advanced cybersecurity and intelligence solutions for government agencies and critical infrastructure, focusing on cyber warfare, secure communications, and mission-critical cyber defense.

  • FireEye (Mandiant, now part of Google Cloud)

    Known for its frontline expertise in cyber incident response, threat intelligence, and security validation, helping organizations prepare for, prevent, and respond to advanced cyber threats. Mandiant solutions are now integrated with Google Cloud's security portfolio.

  • Microsoft

    Offers a vast suite of cybersecurity products and services, including endpoint protection, cloud security, identity and access management, threat intelligence, and compliance solutions, forming a comprehensive cyber defense strategy for businesses worldwide.

  • Booz Allen Hamilton

    A global management and technology consulting firm that provides extensive cybersecurity services to government and commercial clients, including offensive and defensive cyber operations, risk management, and secure system engineering.

  • Trellix

    Formed from the merger of McAfee Enterprise and FireEye's enterprise product business, Trellix provides extended detection and response (XDR) solutions to help organizations dynamically adapt to threats and enhance their cyber defense capabilities.

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