Single Sign-On

A user authentication process that allows a user to access multiple applications with one set of login credentials.

Description

Single Sign-On (SSO) is an authentication method that enables users to log in to multiple applications with a single set of credentials, such as a username and password. This process simplifies the user experience by eliminating the need to remember multiple passwords for different services. SSO is widely used in corporate environments, educational institutions, and online services to enhance security and streamline access. When a user logs in to one application, they automatically gain access to others that are connected to the same identity provider without needing to log in again. This reduces password fatigue and lowers the likelihood of password-related security breaches. Popular SSO solutions include SAML (Security Assertion Markup Language), OAuth, and OpenID Connect, which facilitate secure communication between identity providers and service providers. Companies like Google and Microsoft utilize SSO to allow users to access a range of services, such as Gmail, Google Drive, and Microsoft 365, using one account, thereby improving productivity and security.

Examples

  • Google: Users can access Gmail, Google Drive, and YouTube with one Google account.
  • Microsoft: Microsoft 365 users can log into Outlook, OneDrive, and Teams using a single Microsoft account.

Additional Information

  • SSO enhances user experience by providing seamless access to multiple applications.
  • It improves security by reducing the number of passwords users need to manage, thus minimizing the risk of password-related attacks.

References