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Authentication Frequency and Challenge Type Based on Environmental and Physiological Properties

  • US 20150178486A1
  • Filed: 03/09/2015
  • Published: 06/25/2015
  • Est. Priority Date: 11/19/2007
  • Status: Active Grant
First Claim
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1. A method comprising:

  • presenting, via a processor, a first authentication challenge on a device at a first time;

    obtaining a measurement of an environmental property associated with the device, at a second time later than the first time; and

    presenting a second authentication challenge on the device at a third time later than the second time, wherein a time interval between the first time and the second time is based on the measurement.

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