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A comment on Japan facing credit card number shortage. Parent comment

Re:Japan facing credit card number shortage by chrisseaton on Tuesday August 25, 2020 @05:59PM (#24276681)
> You can't get 125 million folks into this address space?

I think some people are now using a new card number per transaction, with these disposable card numbers, aren't they?

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Re:Japan facing credit card number shortage by pedroma on Tuesday August 25, 2020 @06:46PM (#24277164)
You're talking about services like Google/Apple Pay right? Aren't these credit card numbers rotated by Google/Apple, and they just keep some mapping of userIds, transactionIds, and rotated cardIds?
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Re:Japan facing credit card number shortage by chrisseaton on Tuesday August 25, 2020 @06:49PM (#24277184)
No I think you can genuinely get disposable real credit card numbers.

https://www.theukdomain.uk/virtual-credit-card-numbers-every...

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Re:Japan facing credit card number shortage by infogulch on Tuesday August 25, 2020 @07:53PM (#24277629)
privacy.com
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Re:Japan facing credit card number shortage by LetThereBeNick on Tuesday August 25, 2020 @10:01PM (#24278312)
My Citi card comes with a desktop app that can generate new numbers for online payments all the time. Beyond one-time use, I can generate a number that will work only with ‘x’ company for ‘x’ number of months. When I saw that, I assumed Citi+MasterCard must have at least 10,000s of times more numbers than customers
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Re:Japan facing credit card number shortage by sgjohnson on Tuesday August 25, 2020 @09:54PM (#24278266)
Yes, but in this case you can actually rotate those numbers easily without running into any issues, and on top of that they usually consume just one BIN per service.
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Re:Japan facing credit card number shortage by AdrianB1 on Tuesday August 25, 2020 @06:12PM (#24276822)
We are lucky they don't use a disposable IPv4 address per page, that would break the Internet /s.
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Re:Japan facing credit card number shortage by chrisseaton on Tuesday August 25, 2020 @06:19PM (#24276906)
Not really sure what point you're trying to make, sorry?
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Re:Japan facing credit card number shortage by AdrianB1 on Wednesday August 26, 2020 @05:49AM (#24280880)
Disposable CC numbers (one time use) is a waste of a very limited resource.
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Re:Japan facing credit card number shortage by chrisseaton on Wednesday August 26, 2020 @06:09AM (#24280984)
‘/s’ usually means sarcastic when you see it on this site, but you’ve used it in a comment where you meant what you said (you do think it’s good we’re not wasting IP addresses in the same way). That’s why it’s confusing.
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