Preventing Fraud

Victims of billing fraud are on the rise, and it has become a major social issue. DOCOMO is addressing the problem by conducting the following measures together with the government and other mobile providers in order to strengthen prevention of remittance soliciting fraud perpetrated with mobile phones obtained with fraudulent subscriptions.

• Payment methods for usage charges for individual subscriptions limited to a credit card or direct account withdrawal in principle. Credit card or ATM card to be applied confirmed at a docomo Shop or other outlet.
• Customer information who fail to identify themselves when requested by the police, and to whom the services are discontinued, are commonly shared among all mobile providers and utilized in screening procedures.
• In order to prevent large volumes of fraudulent subscriptions under the same name, individual subscriber lines under the same name have been limited to a total of five lines, in principle.

• Information is provided to the police when there is suspicion of fraudulent identification, such as a fake driver's license, after informing the customer in advance.

Some mobile handsets on the market have been obtained fraudulently through theft or by forging subscription documents, we have put countermeasures in place that put restrictions on use of XiTM ("crossy") and FOMA voice and packet communications when it becomes apparent that a phone has been obtained fraudulently and a request is made by a docomo Shop or similar source.
We also established a related system that allows customers purchasing a mobile phone from an outlet other than a docomo Shop or retail store to check whether the phone is subject to network usage restrictions by entering the phone's serial number on DOCOMO's website or i-mode site.
Moreover, as a measure to prevent online transactions involving mobile phones obtained through fraudulent means, we have requested that the following four Internet auction sites make it mandatory to list the phone's serial number when putting it up for auction and implement related measures.

• Rakuten Auction, Inc. (operates Rakuten Auction)
• DeNA Co., Ltd. (operates Bidders)
• Mobaoku Co., Ltd. (operates Mobaoku)
• Yahoo Japan Corp. (operates Yahoo! Auction)

Security measures are indispensable to "Osaifu-Keitai" (Mobile Wallet), a service that functions your phone's IC card as electronic money settlement and credit card.
DOCOMO is able to block all mobile phone functions remotely, including Mobile Wallet function, when contacted by customers whose phones have been lost or stolen. In addition, the customer locking the IC card as the default and only unlocking it when needed is also an effective security measure, so this is introduced on our website and in user manuals, etc.