Definition
Authentication is the process of verifying the identity of a user, device, or system before granting access to resources. It typically involves credentials such as passwords, biometrics, security tokens, or digital certificates.
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Common questions about Authentication answered by our security experts.
Related Terms
Authorization
Authorization is the security process that determines whether an authenticated user or system has permission to access a specific resource or perform a particular action. It follows authentication and enforces access policies.
Multi-Factor Authentication
Multi-Factor Authentication (MFA) is a security method that requires users to provide two or more verification factors to gain access to a resource. It combines something you know (password), something you have (token), and something you are (biometrics).
Access Control
Access control is a security mechanism that regulates who or what can view, use, or interact with resources in a computing environment. It enforces policies that grant or deny permissions based on user identity, role, or other attributes.
Single Sign-On
Single Sign-On (SSO) is an authentication method that allows users to access multiple applications and services with one set of login credentials. SSO improves user experience, reduces password fatigue, and centralizes authentication management.
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