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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. The United States Social Security Administration

    Use your personal my Social Security account to access your benefit verification letter, request a replacement Social Security or Medicare card, apply for benefits, and much more.

  5. 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.

  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. 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.

  8. Allied Universal | Leading Security Services & Solutions Worldwide

    Allied Universal provides integrated security services that combine security personnel, technology, and a variety of professional services, to give our clients a flexible and scalable approach to …

  9. 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 …

  10. 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.