Security Threats in Prepaid Mobile

Recent communications environment significantly expand themobile environment. Prepaid mobile services for 3G networksenables telecommunication to sign up new users by utilizing thelatest in converged billing technologies. The worldwide mobilecommunication market is exploding, and 50 percent ofsubscribers are expected to use prepaid billing . Prepaidservices are driving mobile communication into emergingmarkets such as South America, Eastern Europe, Asia, Africaand Gulf Countries. Prepaid phone service requires a user tomake payment before calling. It is quite common to get prepaidSIM cards on every major Network. This paper discuss aboutvarious prepaid techniques, challenges and countermeasures inprepaid mobile communication system .