Abstract: The disclosed embodiments include computerized methods and systems for authenticating user identity based on non-credentialed information. For example, in response to a request from a device of a user for a service performable by one or more networked computer systems, the disclosed embodiments may identify one or more public and private sources of non-credentialed information. The disclosed embodiments may also transmit messages to devices of the individuals requesting non-credentialed information associated with the user, and based on the received responses, may verify an identity of the user based on at least a portion of the received non-credentialed information. Further, in some aspects, non-credentialed authentication processes consistent with the disclosed embodiments may reduce an ability of malicious parties to attach or hack into the one or more networked computer systems.