Contactless bank cards are to be introduced on London's Tube, DLR and Overground trains.
 
Starbucks reported a strong Q2 performance, with revenue up 11 percent, a 23 percent increase in quarterly profit.
 
Using your iPhone as a credit card? It could happen soon.
 
Etsy is expanding its own payments processing option for even more sellers in Europe with the addition of six countries.
 
Visa Inc. said Thursday that its profit climbed 11 percent in its fiscal third quarter versus a year earlier, aided by solid growth in payments volume, service revenue and transactions.