[[Secure Single Sign-On]] ([[SSO]]) is a method of authentication that allows users to access multiple applications and systems with just one set of login credentials. It eliminates the need for users to remember multiple usernames and passwords for different platforms, simplifying the login process. The main objective of secure SSO is to enhance user convenience and reduce the risk associated with managing numerous login credentials. By implementing SSO, users can access various applications seamlessly without the need to provide their credentials repeatedly. There are two common approaches to implementing secure SSO: 1. Federation-based SSO: In this method, a trusted third-party identity provider (IdP) authenticates users and generates tokens that are then used to access different applications. The IdP securely shares the user's identity information with the desired application, eliminating the need for separate login processes. 2. Web-based SSO: This approach uses cookies or sessions to maintain user authentication across different applications or websites within a single domain. When a user logs in to one application, a token or cookie is created, allowing them to access other applications without re-entering their credentials. Benefits of secure SSO include: 1. Improved user experience: Users only need to remember one set of login credentials, reducing frustration and simplifying the login process. 2. Enhanced security: With secure SSO, organizations can enforce strong authentication methods like multi-factor authentication (MFA), reducing the risk of unauthorized access and credential theft. 3. Centralized control: Administrators can manage user access and permissions from a central location, making it easier to grant or revoke access when needed. 4. Time-saving: Secure SSO reduces time spent on entering credentials for each application, increasing productivity for both end-users and IT administrators. However, it's important to note that implementing secure SSO requires careful planning and consideration of security measures like encryption, secure token exchange protocols (such as Security Assertion Markup Language - SAML), and robust identity and access management (IAM) practices to ensure the overall security of the SSO system.