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  1. Information Technology (IT) Certifications & Tech Training

    CompTIA SecAI+ is designed for cybersecurity and IT professionals who need to secure AI systems and use AI responsibly in security operations. Pre-order now to start planning how AI …

  2. Security - Wikipedia

    Computer security, also known as cybersecurity or IT security, refers to the security of computing devices such as computers and smartphones, as well as computer networks such as private …

  3. Guide to CompTIA Security+ Certification 2025 | Coursera

    Oct 23, 2025 · It focuses on hands-on, practical security skills in six major domains. Preparing yourself for the exam gives you a broad base of practical knowledge and skills you’ll need to …

  4. SECURITY Definition & Meaning - Merriam-Webster

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

  5. Cybersecurity | Homeland Security

    Jan 12, 2026 · The Department of Homeland Security and its components play a lead role in strengthening cybersecurity resilience across the nation and sectors, investigating malicious …

  6. 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.

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

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

  8. Congress Approves FY 2026 National Security, Department of …

    2 days ago · Congress Approves FY 2026 National Security, Department of State Appropriations Bill The bill now heads to the President to be signed into law Washington, D.C. – Today, the …

  9. Cybersecurity News, Insights and Analysis | SecurityWeek

    2 days ago · SecurityWeek provides cybersecurity news and information to global enterprises, with expert insights & analysis for IT security professionals

  10. SECURITY | English meaning - Cambridge Dictionary

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