# Single Sign On \ Single Sign-On (SSO) is a system that allows a user's account information to be used by a service, like Aristotle Metadata Registries, without revealing their password. Aristotle Metadata has chosen Microsoft Azure AD as its SSO provider by default. The reason for implementing SSO for Aristotle Metadata staff is to simplify their login process. Currently all users including Aristotle Metadata staff need to sign up or be invited to each separate registry and maintain a username and password for each registry as well, given the number of different production and testing/development registries this becomes tedious and poses a security issue if credential leak was to occur. This can be cumbersome, especially since there are multiple production and testing/development registries. It also poses a security risk if login credentials were to be compromised. By implementing and enforcing SSO for Aristotle Metadata staff, the risk of credential leakage is reduced, and it becomes easier for staff to access the registries they need for their work. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://help.aristotlemetadata.com/single-sign-on.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.