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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 Definition & Meaning - Merriam-Webster

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

  3. 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 …

  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. 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 …

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

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

  7. Home | Homeland Security

    U.S. Department of Homeland Security: With honor and integrity, we will safeguard the American people, our homeland, and our values.

  8. Shop Amazon.com | Security & Surveillance Cameras

    Looking for smart home security products? Amazon.com has a wide selection of products to monitor your home with your voice and smartphone.

  9. 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 cyber security, digital security, or …

  10. The United States Social Security Administration

    Apply for Retirement, Disability, or other benefits online. See where you are in your application or appeal process. Find the best way to replace your card. We have answers for your frequently …