Chapter 18: Using Apple Pay

Many people still carry cash, but cash can be lost or stolen, and carrying a lot of cash can be cumbersome. Thus, many people rely on credit and debit cards instead.

Although credit and debit cards can be lost or stolen too, they're so much easier to carry than large amounts of cash. However, one huge problem with credit and debit cards is that their numbers can be stolen and used by thieves.

To protect your credit and debit card numbers from thieves, Apple introduced Apple Pay. The main idea behind Apple Pay is that you use an existing credit or debit card, but instead of giving out that credit or debit card to merchants, you use Apple Pay instead, which hides your credit or debit card number. By protecting your credit or debit card number from merchants, Apple Pay reduces the threat of others stealing your crucial credit or debit card numbers by hacking into a merchant's network.

Since Apple Pay is linked to your iPhone, it requires...