Single sign-on (SSO) is an authentication tool that enables users to securely access multiple applications and services using one set of credentials, eliminating the need to remember different passwords for each service. In today’s remote work ecosystem, where employees rely on software-as-a-service (SaaS) applications like Slack, Google Workspace, and Zoom, SSO provides a simple pop-up widget or login page with just one password that provides access to every integrated app. SSO puts an end to the days of remembering and entering multiple passwords and eliminates the frustration of having to reset forgotten passwords. Users can also access a range of platforms and apps without having to log in each time. How does SSO work? SSO is built on the concept of federated Identity, which is the sharing of Identity attributes across trusted but autonomous systems. When a user is trusted by one system, they are automatically granted access to.