"U.S. payments company Fiserv has started moving clients onto one of its two debit networks, STAR and Accel. A debit network carries a shop’s payment request to the bank that issued the customer’s card and brings back the bank’s decision. Fiserv plans to sell the other network if it gets an acceptable offer and wind it down otherwise, CEO Takis Georgakopoulos told a fintech conference. He left the name of the surviving network open."