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Fraud is one of the major concerns of the telecommunication sector. It leads to high amounts of financial losses in this sector ever year. For mobile telephony operators, one of the largest contributing factors to losses due to fraud is the one coming from roaming scenarios. The present paper intends to examine the causes generating these types of fraud and the strategies and measures aimed at protecting operators from them. The methodology to study this matter raises a series of questions to be discussed among the main players involved in preventing roaming fraud for the purpose of drawing up a working agenda to improve the outlook for this sector.
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