| 摘要 |
A method for guarding against telephony-based fraud that includes, at a telephony device, identifying a caller ID of an incoming call or a dialled number of an outgoing call attempt or a number to be dialled. The identified caller ID or dialled number or number to be dialled is then compared against a blacklist of telephone numbers. In the event that a match is found, a warning is presented to a user of the device and/or the call or call attempt is terminated.
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