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Continuous user authentication

  • US 9,444,825 B2
  • Filed: 08/11/2014
  • Issued: 09/13/2016
  • Est. Priority Date: 08/11/2014
  • Status: Expired due to Fees
First Claim
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1. A method performed under control of a server, comprising:

  • providing a communication service to an end device;

    receiving, from the end device, a text character input, while providing the communication service, wherein the text character input includes a predictive text input or an auto correction text input;

    authenticating a user account associated with the end device by comparing the received text character input to a stored text input history, while providing the communication service; and

    identify the user account based on a positive result of the comparison of the received text character input to the stored text input history.

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