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  1. What Is Authentication? Definition and Methods | Microsoft Security

    Authentication is the process that an individual, application, or service goes through to prove their identity before gaining access to digital systems.

  2. Authentication - Wikipedia

    The term digital authentication, also known as electronic authentication or e-authentication, refers to a group of processes where the confidence for user identities is established and presented via …

  3. What Is Authentication? Definition, Types & Examples

    2 days ago · Learn what authentication means, how it works, and why it’s vital for cybersecurity. Explore types, methods, and real-world examples for secure access.

  4. What is Authentication?Types, Roles & How it Works!

    Sep 27, 2024 · Authentication is a cornerstone of digital security, serving as the first defense against unauthorized access to sensitive information and systems. This article delves into the concept of …

  5. What is authentication? - Cloudflare

    In cyber security, authentication is the process of verifying someone's or something's identity. Authentication usually takes place by checking a password, a hardware token, or some other piece …

  6. What Is User Authentication? A 2025 Guide - Frontegg

    Aug 19, 2024 · In this guide, we’ll break down how user authentication works, explore the latest authentication methods and protocols, and explain how platforms like Frontegg help engineering …

  7. Authentication: Definition, Types, Uses & More | StrongDM

    Oct 23, 2025 · Authentication is the process of verifying a user or device before allowing access to a system or resources. In other words, authentication means confirming that a user is who they say …

  8. AUTHENTICATION Definition & Meaning - Merriam-Webster

    The meaning of AUTHENTICATION is an act, process, or method of showing something (such as an identity, a piece of art, or a financial transaction) to be real, true, or genuine : the act or process of …

  9. What Is Authentication? - Coursera

    Oct 21, 2025 · Authentication is a security process that ensures only users with permission can access information, systems, or other resources to guard against fraudulent activity or security breaches.

  10. What is Authentication? Definition and uses - Auth0

    Authentication is more than a definition when it comes to identity. Learn about all the ways authentication is used as the core of securing your business.