System and Method for Fast and Accurate Detection of SMS Spam Numbers Via Monitoring Grey Phone Space
AssigneeAT&T Intellectual Property I, L.P.
InventorsYu Jin, Ann E. Skudlark, Nan Jiang
Life of this patent
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Abstract
A method and system for identifying short message service (SMS) spammers identifies senders as spammers by determining that the senders are sending SMS messages to devices included in a grey phone space. Devices in the grey phone space are identified using various methods including an analysis of call detail records. A grey ratio for a sender is determined as a ratio of messages sent to grey phone numbers by the sender to messages sent to all phone numbers by the sender. A sender is identified based on a difference between the grey ratio for the sender and a second grey ratio being above a threshold.
Claims20
A method comprising:
- identifying a plurality of grey phone numbers;
- analyzing a plurality of call records to determine a number of messages sent by a short message service sender to any of the plurality of grey phone numbers;
- and
- identifying the short message service sender as a spammer based on the number of messages sent by the short message service sender to any of the plurality of grey phone numbers.
An apparatus comprising:
- a processor;
- and
- a memory storing computer program instructions, the computer program instructions when executed on the processor, cause the processor to perform operations comprising:
- identifying a plurality of grey phone numbers;
- analyzing a plurality of call records to determine a number of messages sent by a short message service sender to any of the plurality of grey phone numbers;
- and
- identifying the short message service sender as a spammer based on the number of messages sent by the short message service sender to any of the plurality of grey phone numbers.
A computer readable medium storing computer program instructions for displaying a plurality of images, which, when executed on a processor, cause the processor to perform operations comprising:
- identifying a plurality of grey phone numbers;
- analyzing a plurality of call records to determine a number of messages sent by a short message service sender to any of the plurality of grey phone numbers;
- and
- identifying the short message service sender as a spammer based on the number of messages sent by the short message service sender to any of the plurality of grey phone numbers.
Dependencies are inferred from the claim text.