Method and system of transaction security

Information security – Access control or authentication – Network

Reexamination Certificate

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C726S006000, C726S005000, C726S018000, C726S019000, C726S032000

Reexamination Certificate

active

10800599

ABSTRACT:
A method and system for secure authentication of a user in a session conducted over an interactive communication channel, such as a two-way telephony communication channel, with an authenticating entity, such as a financial institution, utilizes a session identifier, such as pseudorandom noise to detect and identify attempts to play back authentication information, such as user-spoken phrases, intercepted and recorded by an unauthorized party during a previous session between the user and the authenticating party.

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