An authentication mechanism that allows users to access multiple applications and services with a single set of login credentials. SSO eliminates the need for users to remember multiple passwords while providing centralized access control and improved security through standardized authentication protocols.

SSO Implementation

Single Sign-On systems typically use protocols like SAML (Security Assertion Markup Language), OAuth, or OpenID Connect to securely share authentication information between identity providers and service providers. When a user authenticates with the SSO system, they receive tokens or assertions that grant access to connected applications without requiring additional login attempts.

Security and User Experience Benefits

SSO reduces password fatigue and the security risks associated with weak or reused passwords. It also provides administrators with centralized control over user access, enabling quick provisioning and deprovisioning of accounts across multiple systems. However, SSO implementations must be carefully secured as they become single points of failure for accessing multiple systems.