Perhaps the biggest security feature of the offering is that Apple Card can generate virtual card numbers for online non-Apple Pay purchases. Though Apple said that the app would display your card info during the event, they weren’t specific on what that info would be so I got some more detail here. The physical Apple Card, of course, has no number. The app displays the last 4 digits of the card number that is on the mag stripe of the card only, you never see the full card number.Instead, Apple provides a virtual card number and virtual confirmation code (CVV) for the card in the app. You can use this for non-Apple Pay purchases online or over the phone. This number is semi-permanent, meaning that you can keep using it as long as you want.

https://techcrunch.com/2019/03/28/how-apple-card-works/?utm_source=Benedict%27s+newsletter&utm_campaign=a5c1f41fb9-Benedict%27s+Newsletter_COPY_01&utm_medium=email&utm_term=0_4999ca107f-a5c1f41fb9-70280797