[Apple Pay] "Tokenization removes the actual credit card number and replaces it with a randomly generated number. That number, or token, can be configured to expire after one purchase or made specific to a certain transaction, making it a useless target for hackers or fraudsters.
But what's more, tokenization removes a huge storage burden from merchants, since they never see a person's actual credit card information and it never enters their POS system or online payment portal.
Now, Apple didn't invent tokenization. But by taking the tokenization route, the Cupertino powerhouse could be looking to ride the security wave all the way to payment success, especially considering the rising number of merchant data breaches and instances of stolen credit card information that continue to hit the payment and retail industries."