Single Sign-On (SSO) is a powerful authentication method that enhances security and convenience by allowing users to access multiple applications with a single login. It reduces password fatigue, minimizes phishing risks, and streamlines identity management. Organizations benefit from improved IT efficiency, faster onboarding, and stronger compliance with security regulations. However, if an SSO account is compromised, it can become a single point of failure. To mitigate risks, businesses should enforce Multi-Factor Authentication (MFA), apply role-based access controls (RBAC), and implement continuous security monitoring to detect and respond to potential cyber threats in real time.