Patent ID: 8726355
Filing Date: 2014-05-13
Classification: G06F,H04L

Abstract:
1. A method comprising: sampling digital data according to a sampling function operating on a computer from a data stream used for generating sensible output during a first session between at least two network nodes initiated under a defined user account, wherein the first session is conducted for a primary purpose other than image recognition training; storing the sampled digital data on a computer-readable medium in association with an identifier for the user account under which the first session is initiated; transmitting the sampled digital data and decoy digital data configured for generating discrete sensible outputs to a client for use in an authentication session for a subsequent session under the user account; authenticating access for the subsequent session in response to receiving input from the client indicating selection of sensible output generated from the sampled digital data from a challenge matrix comprising the sensible output generated from the sampled digital data and the decoy digital data.