The system comprises an interface and a processor. The interface is configured to receive a request from an application for authorization to access, wherein access to the application is requested by a user, and receive a task request from the application for authorization to access a task, wherein access to the task is requested by the user. The processor is configured to authenticate the request from the application for authorization to access, determine that the task comprises a sensitive task, determine a user authentication device, provide a challenge for a digital credential to the user authentication device, wherein the digital credential is backed by data stored in a distributed ledger, receive a response from the user authentication device, determine the response is valid, and provide an authorization to access the sensitive task.