3 ms·
That’s a great point. In spite of technical changes such as Apple Pay/Android Pay, chip cards, and so on, I can never recall an instance when I was unable to us
by jasonjei 7y ago
That’s a great point. In spite of technical changes such as Apple Pay/Android Pay, chip cards, and so on, I can never recall an instance when I was unable to use a credit card globally. It seems most failures to running a credit card are pretty localized, too, and never at the interchange level...
- raverbashing 7y agoI suspect there's a lot of caching involved as well. When making a purchase you probably don't need all the info to go all the way to the bank and back. Stolen/lost cards can simply be flagged in a master db/table and can be rejected quickly for example.