Why was my credit card number or expiry date updated automatically?
To prevent failed payments and save you manually updating your credit card details, we may automatically update your credit card number, expiry date, or both, when notified by your card issuer.
What information does the card issuer provide to PayPal?
The card issuer provides your new card number or expiry date. We don’t use or store your card Security Number and card data from your card issuer is encrypted. Your card issuer can notify us of any changes to your card (except for name changes), including if the card account has been closed.