A tool for credential validation using multiple computing devices. The tool selects at least one challenge question. The tool selects one or more user owned devices, wherein selecting the one or more user owned devices includes querying a database for each user owned device associated with a user account. The tool selects at least one device order, based, at least in part, on a level of security desired in credential validation. The tool presents the at least one challenge question to the one or more user owned devices, wherein the at least one challenge question includes the at least one device order for returning at least one response. The tools determines whether the at least one response received from the one or more user owned devices is a correct response relative to the at least one challenge question and the at least one device order.