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Authentication method and system

  • US 20110173017A1
  • Filed: 03/29/2011
  • Published: 07/14/2011
  • Est. Priority Date: 08/21/2001
  • Status: Active Grant
First Claim
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1. A method of authorizing a transaction via a mediator, said transaction involving a user having a mobile device with a known address, said method comprising the steps of;

  • receiving a request from an entity by the mediator to authorize a transaction involving a user having a mobile device,accessing said mobile device'"'"'s address,causing a message to be sent to the mobile device address from a first reply address,determining if a response to the first reply address authorizes the transaction, andsending a response to the entity indicating if the transaction is authorized.

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