Method for preventing cellular telephone fraud
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United States of America Patent
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-
Nov 23, 1999
Grant Date -
N/A
app pub date -
Mar 29, 1996
filing date -
Mar 29, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of identifying the fraudulent use of a cellular telephone includes the step of identifying an initial call made from the cellular telephone. An automated challenge-response authentication operation is then executed with a rotating subscriber query, resulting in a first authentication failure. In response to the first authentication failure, an operator assisted escalated challenge-response authentication operation is performed with a rotating subscriber query to generate a second authentication failure, indicating the fraudulent use of the cellular telephone.
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