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  1. What Is Cybersecurity? | IBM

    Tech trends driving cyber threats One of the biggest challenges for cybersecurity professionals and security operations teams is the constantly evolving nature of the information technology (IT) …

  2. What is Cybersecurity? | CISA

    Feb 1, 2021 · Cybersecurity is the art of protecting networks, devices, and data from unauthorized access or criminal use and the practice of ensuring confidentiality, integrity, and availability of …

  3. What is cybersecurity? - Cisco

    Cybersecurity is the practice of protecting systems, networks, and programs from digital attacks. These cyberattacks are usually aimed at accessing, changing, or destroying sensitive information; extorting …

  4. What Is Cybersecurity? | Definition from TechTarget

    Jul 15, 2025 · Cybersecurity is the practice of protecting systems, networks and data from digital threats. It involves strategies, tools and frameworks designed to safeguard sensitive information and ensure …

  5. What is Cybersecurity? - Kaspersky

    Cybersecurity is the practice of defending computers, servers, mobile devices, electronic systems, networks, and data from malicious attacks. It's also known as information technology security or …

  6. What is Cybersecurity? Key Concepts Explained | Microsoft Security

    Cybersecurity is the practice of protecting your critical systems, data, and networks from digital attacks. As data has proliferated and more people work and connect from anywhere, bad actors have …

  7. What is Cybersecurity and Why is It Important? | SNHU

    Sep 19, 2025 · Cybersecurity is all about keeping computer systems and electronic data safe. As cybercrime becomes more frequent, cybersecurity practitioners are increasingly needed to protect …

  8. What is Cybersecurity? Different types of Cybersecurity | Fortinet

    Cybersecurity is the combination of methods, processes, tools, and behaviors that protect computer systems, networks, and data from cyberattacks and unauthorized access. Although deeply rooted in …

  9. What Is Cybersecurity? Why It Matters & Core Concepts

    Cybersecurity is the practice of protecting digital systems, networks, cloud environments, and data from unauthorized access, misuse, or disruption.

  10. Cybersecurity | Homeland Security

    Jan 12, 2026 · Cybersecurity and Infrastructure Security Agency (CISA) The Cybersecurity and Infrastructure Security Agency (CISA) leads the national effort to understand, manage, and reduce …