Single Sign-On (SSO) is one of the major elements of contemporary identity management, providing a simple user experience along with enhanced security. By authenticating in one login, SSO prevents password fatigue, saves IT support expense, and maximizes productivity. Organizations gain with centralized access control, allowing security policies and compliance with regulations to be enforced with ease. Yet, SSO also poses risks, including one point of failure if credentials are ****. To counter these risks, organizations must enforce Multi-Factor Authentication (MFA), employ risk-based authentication, and perform ongoing monitoring. When properly secured, SSO provides the ideal mix of usability and robust security.