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  1. Computer security - Wikipedia

    Computer security (also cyber security, digital security, or information technology (IT) security) is a subdiscipline within the field of information security.

  2. What Is Cybersecurity? | IBM

    Cybersecurity is the practice of protecting people, systems and data from cyberattacks by using various technologies, processes and policies. At the enterprise level, cybersecurity is key to overall risk …

  3. Computer security | Definition & Facts | Britannica

    Nov 21, 2025 · computer security, the protection of computer systems and information from harm, theft, and unauthorized use. Computer hardware is typically protected by the same means used to protect …

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

    Learn about cybersecurity and how to defend your people, data, and applications against today’s growing number of cybersecurity threats. Cybersecurity is a set of processes, best practices, and …

  5. What Is Cybersecurity? Technology And Data Protection - Forbes

    Feb 5, 2024 · Cybersecurity is a pretty broad term: It refers to the practice of protecting computer systems, networks, programs, devices and data from cyber attacks through both technological …

  6. 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 …

  7. What Is Cybersecurity | Types and Threats Defined - CompTIA

    Mar 5, 2025 · Cybersecurity involves any activities, people, and technology your organization uses to avoid security incidents, data breaches, or loss of critical systems. It’s how you protect your business …

  8. What Is Cybersecurity? A Comprehensive Guide | Purdue Global

    Feb 14, 2025 · Cybersecurity is “the art of protecting networks, devices, and data from unauthorized access or criminal use.” Cybersecurity has become especially relevant, with attacks increasing in …

  9. What Is Computer Security? Types, Importance & Best Practices

    Sep 11, 2025 · Discover what computer security is, why it matters, and how to protect systems from cyber threats. Learn types, best practices, and future trends in security.

  10. What Is Cybersecurity? Best Practices & More | CrowdStrike

    Also known as information technology security (IT security), it protects against threats that aim to access or destroy sensitive information, exhort money from users, or interrupt normal business practices.