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  1. 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

  2. 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 …

  3. SECURITY Definition & Meaning - Merriam-Webster

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

  4. 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.

  5. National Security – The White House

    Dec 31, 2025 · Mobilized the Federal Government and private sector to rebuild America’s defense industrial base, restore American shipbuilding, and re-shore key industries critical to our national …

  6. National Security News: Latest News and Investigations on Homeland ...

    Find the latest Homeland Security news, videos and photos on http://www.nbcnews.com. Read national security headlines covering immigration, terrorism, the federal ...

  7. Security+ (Plus) Certification | CompTIA Global

    Security+ V7 Security+ CompTIA Security+ is the premier global certification that establishes the essential skills required for core security functions and a career in IT security. It showcases …

  8. Cybersecurity | Latest Cyber Security News | Reuters

    3 hours ago · Find latest cybersecurity news from every corner of the globe at Reuters.com, your online source for breaking international news coverage.

  9. Security News: Cybersecurity, Hacks, Privacy, National Security

    Get in-depth security coverage at WIRED including cyber, IT and national security news.

  10. SECURITY | definition in the Cambridge English Dictionary

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