System and method of preventing alteration of data on a wireless device
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United States of America Patent
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Jun 22, 2010
Grant Date -
Jun 22, 2006
app pub date -
Dec 21, 2004
filing date -
Dec 21, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
A system and method for securing data on a wireless device. A secured zone is defined by a boundary sensor. A data processing system is coupled to the boundary sensor and a wireless device. If the data processing system detects that the signal strength of the wireless device has fallen below a first predetermined value for longer than a second predetermined value, the data processing system deletes a digital certificate corresponding to the wireless device from memory. Thus, when the wireless device is reintroduced into the secured zone, in response to determining that a digital certificate corresponding to the wireless device is not stored in memory, the disabling module disables the wireless device from operation within the secured zone.
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