An SSO ID (Single Sign-On Identity) is an individual credential used by users to log in once and have access to multiple applications without reauthentication. It enables simpler user access, improves security through reduced password dependency, and makes IT easier to manage. Organizations gain efficiency, improved compliance, and reduced IT support expenses. If an SSO ID is breached, numerous systems can be accessed by attackers. To enhance security, companies must enact Multi-Factor Authentication (MFA), utilize role-based access controls (RBAC), and install continuous monitoring to identify and block unauthorized attempts at access in real time.