+1.
Discover's one time use CC # is fantastic.
I really wonder why they all don't do this. There is no way I would gamble making buys online with anything else.
Paypal is horrible, way too many bad experiences with them. I will never use them again.
Discover doesn't have one-time-use numbers anymore IIRC.
They dumped that secure online feature a couple years ago but then brought it back as
Secure Online Account Numbers.
https://www.discover.com/credit-cards/help-center/faqs/soan.html#q1
Now technically, certain merchants cannot use this number multiple times. Rakuten may be one. Others are Amazon, Facebook and Paypal. So these essentially are yes, one-time numbers for them. Otherwise a merchant keeps that secure number you've generated and reuses it on subsequent purchases by you. The secure number you generate expires when your Regular discover card expires
From the link:
"What is a secure online account number?
Secure online account numbers is a free online service offering you added security by protecting your account number while shopping online.
When you make a purchase with a merchant using a secure online account number, the number is assigned only to that particular merchant. Once a secure online account number is assigned,
the merchant can use it for your future purchases with them unless you specify otherwise.
Some merchants, such as Facebook, Amazon, and PayPal, will not be able to use the same secure online account number multiple times. When shopping with those merchants, you will need to use a new secure online account number each time.
When you use a secure online account number instead of your actual Discover Card number, your account number is not revealed on the Internet or stored in an online retailers files. Or course, you also always receive $ Fraud Liability Guarantee so you're never responsible for unauthorized charges on your Discover Card account.
Note: You must be logged into your Discover Card account in order to generate and use secure online account numbers. Click here to log into your account and begin using the Secure Online Account Numbers feature.
When do secure online account numbers expire?
Secure online account numbers always expire on the same date as your actual Discover Card account number. When your Discover Card is reissued with a new expiration date, it will be necessary to update the expiration information on any retailer's web site where you have stored your actual card number or any secure online account numbers.