Take, for example, MasterCard's zero liability promise that claims it is going global. Or, how about global payments giant First Data who goes it alone against banks? And ACI Worldwide expands its global online payments. Yet Apple Pay and Square have a long way to go on the global front with much catching up to do against PayPal.
The choices for an online payment system are endless. How you decide which system to use depends on who your customers are, where they are located, what you are selling and the volume of your transactions. It's a booming business. Alibaba proves the return on investment can be huge on global payments with their recent "Singles Day" using Alipay.