> For the complete documentation index, see [llms.txt](https://help.cymmetri.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.cymmetri.io/single-sign-on/passwordless/consent-based.md). # Consent Based Consent based authentication allows users to verify their identities with explicit consent from their registered devices. If it has been enabled in the passwordless configuration, the user will be displayed consent based authentication on passwordless login attempt, where the user will be asked for approval.
The user has to "accept" the authentication request received on the user's mobile device as a push notification. Post approval the user is verified and logged in the system