All mainstream credit card numbers obey a mathematical trick designed to catch the most common typos. It’s called the Luhn ...

Now that you've got a new virtual card number for your Apple Cash, your iPhone's Safari app can autofill your card information if you make a purchase on your phone.

With financial crime on the rise, it's important to know which payment methods you should use and which you should avoid.

When you use autofill to enter a credit card, Safari draws from its local data store: If you enter the verification code (most frequently labeled a CVV or CVC) in Safari’s autofill settings ...