Single Sign-On
Single Sign-On (SSO) is an authentication mechanism that allows users to access multiple applications or services with a single set of login credentials, eliminating the need to log in separately to each system. It centralizes authentication through an identity provider (IdP) that verifies user credentials and issues tokens or assertions to grant access to connected applications. This improves user experience by reducing password fatigue and enhances security by enabling centralized control over authentication policies and access management.
Developers should implement SSO when building enterprise applications, SaaS platforms, or any system requiring secure access to multiple services, as it streamlines user authentication and reduces the risk of password-related security breaches. It is particularly useful in corporate environments where employees need to access various internal tools, or in consumer-facing applications that integrate with third-party services, as it simplifies login processes and supports compliance with security standards like OAuth and SAML.