The most of online services both free and paid use login\password combination to identify their users. But it is clear that such protection method can’t guarantee perfect fraud protection. This combination can be stolen and fraudsters can act like real customer. To reduce such threat we have to use more advanced identity verification technology. There are some ways to organize such protection but they all have a set of different disadvantages concerning pricing, worldwide support and etc. Phone number verification and phone confirmation services can be good alternative.
During the registration of account user can customize his phone number or numbers (both stationary and mobile phones’ networks supported). To complete identity verification process user receives a call from phone confirmation service provider and to verify phone number user has to enter special PIN code by means of computer keyboard or phones buttons. The way of PIN code inputting depends on concrete scheme. As you can see such way of fraud protection is very simple but nevertheless gives an opportunity to organize advanced identity verification protection.