While e-payment is becoming the standard way to make transactions over the world, it is said that Japan still remains a cash-based society. In preparation for the Tokyo Olympics and Paralympics in 2020, the government is promoting cashless systems. Many smartphone payment apps have appeared, and among these, one offered by a leading convenience store was abused in July. Total losses ran to about 55 million yen from 900 people over the four days following the launch of the service.