A user participating in an e-commerce session can be authenticated based on user-touchscreen interaction analysis. That is, a user requested action can be determined that requires additional authentication. Such authentication can further include, requesting analysis of user-touchscreen interaction for the e-commerce session and receiving a pattern matching score for the session from a computer. The pattern matching score can provide an indication of a comparison between the user's interaction with a touchscreen during the session and a pre-established user-touchscreen interaction profile for the user. A computer can perform a verification action to verify an identity of the user based on the received pattern matching score. Responsive to a successful verification of the identity, the computer can perform the requested action.