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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 | 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.

  5. SECURITY Definition & Meaning | Dictionary.com

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

  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 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 …

  8. 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.

  9. New York Licensed Security Services Company

    Our personal security division provides a wide range of services, including protective services, surveillance, security systems, and VIP and executive protection.

  10. Best Home Security Systems for 2025: Top Smart Hubs to …

    Oct 1, 2025 · Investing in a good home security system is essential for safeguarding your property and protecting your loved ones. We tested the top options. Here's what we recommend.