Systems and methods are provided for authenticating a user. The systems and methods include receiving a request to generate a user profile from a device of a user. The systems and methods may determine first information associated with a first entity from the request, and may also determine second information associated with a second entity distinct from the first entity from the request. The systems and methods may access, using system credentials not associated with the user, multiple distinct data sources in a specified order to retrieve additional information. Accessing these multiple distinct data sources may include retrieving a first item of the additional information using the first information, and retrieving a second item of the additional information using the second information. The systems and methods may authenticate the user based on the additional information, and may generate a user profile based in part on the additional information.