Single sign-on (SSO) is an authentication scheme that allows a user to log in with a single ID to any of several related, yet independent, software systems.
Benefits of using single sign-on include:
- Mitigate risk for access to 3rd-party sites. Because user passwords are not stored or managed externally
- Reduce password fatigue from different username and password combinations
- Reduce time spent re-entering passwords for the same identity
- Better network security. Eliminating multiple passwords also reduces a common source of security breaches—users writing down their passwords.