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

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 and …

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

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

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

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.

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 carried out …

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.

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

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