AUTHENTICATION USING COGNITIVE ANALYSIS

A method for dynamically authenticating and granting access to a computing system may be provided. The method comprises deriving at least one authentication question from at least one identified fact contained in a received text data. The at least one identified fact is stored in a knowledge base relating to a user profile. The method comprises conducting a textual authentication dialog. The textual authentication dialog comprises presenting the at least one authentication question and determining, based on natural language processing, that a received response comprises the at least one identified fact from which the at least one authentication question has been derived. The method comprises granting access to the computing system based on the textual authentication dialog.