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  1. Security - Wikipedia

    Security is protection from, or resilience against, potential harm (or other unwanted coercion). Beneficiaries (technically referents) of security may be persons and social groups, objects and …

  2. SECURITY Definition & Meaning - Merriam-Webster

    The meaning of SECURITY is the quality or state of being secure. How to use security in a sentence.

  3. 2025 U.S. National Security Strategy - USNI News

    2 days ago · The following is the White House’s 2025 National Security Strategy, published Dec. 4, 2025. From the Report Introduction – What Is American Strategy? To ensure that America remains …

  4. SECURITY | English meaning - Cambridge Dictionary

    SECURITY definition: 1. protection of a person, building, organization, or country against threats such as crime or…. Learn more.

  5. What is Security? | Definition from TechTarget

    May 30, 2025 · Security in IT is the method of preventing, defending and mitigating cyberattacks. Learn the different types of security and the best security principles.

  6. Security Definition & Meaning | Britannica Dictionary

    SECURITY meaning: 1 : the state of being protected or safe from harm often used before another noun; 2 : things done to make people or places safe

  7. Computer security - Wikipedia

    An example of a physical security measure: a metal lock on the back of a personal computer to prevent hardware tampering. Computer security (also cybersecurity, digital security, or information …