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  1. Security+ (Plus) Certification | CompTIA

    Security+ validates the core skills required for a career in IT security and cybersecurity. Learn about the certification, available training and the exam.

  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. 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. U.S. Department of Homeland Security (DHS) | USAGov

    The Department of Homeland Security (DHS) works to improve the security of the United States. The Department's work includes customs, border, and immigration enforcement, emergency …

  6. SECURITY definition and meaning | Collins English Dictionary

    If something is security for a loan, you promise to give that thing to the person who lends you money, if you fail to pay the money back.

  7. SECURITY Definition & Meaning | Dictionary.com

    adjective of, relating to, or serving as security. The company has instituted stricter security measures.

  8. security noun - Definition, pictures, pronunciation and usage …

    Definition of security noun from the Oxford Advanced Learner's Dictionary. [uncountable] the activities involved in protecting a country, building or person against attack, danger, etc. They …

  9. 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.

  10. Security Awareness Hub

    For assistance with Security Awareness Hub, please view the FAQs page.