Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Wangiri (literally, "One (ring) and cut") is a Phone fraud that originated in Japan. The scam involves a computer using hundreds of phone lines to dial mobile phones numbers at random. The numbers appear as missed calls on the recipients mobile. Believing a legitimate call was cut off, or simply curious, users are enticed to call back. The numbers are either premium rated, or contain advertising messages.

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