Can SIM Cards Secure The Point Of Sale?

摘要

Worldwide, GSM networks will hit the 2 billion subscriber mark within the next few years. Most of these subscribers are prepaid and live in poor, developing countries. It means they have to regularly buy airtime to recharge their accounts, and they usually do so by buying scratch cards from merchants. But scratch cards are a hassle for mobile network operators, which have to distribute them to their phone shops and to numerous large and small merchants they've licensed to sell the cards. The operators also have to absorb significant losses from inevitable theft or counterfeiting of the cards.