41–50 of 360 posts
This is a ridiculous story. Japan has a population of 150M. If you can't give folks a number from SIXTEEN digits - something is wrong with the folks giving out the numbers. Some answers to the excuses. The 6 digits at front, if a company legit runs out of numbers, ask for another prefix. The reality. Instead of using the numbers properly (random ID to tie to a user account) they are probably putting some kind of stru…
This is a ridiculous story. Japan has a population of 150M. If you can't give folks a number from SIXTEEN digits - something is wrong with the folks giving out the numbers. Some answers to the excuses. The 6 digits at front, if a company legit runs out of numbers, ask for another prefix. The reality. Instead of using the numbers properly (random ID to tie to a user account) they are probably putting some kind of stru…
This is a ridiculous story. Japan has a population of 150M. If you can't give folks a number from SIXTEEN digits - something is wrong with the folks giving out the numbers. Some answers to the excuses. The 6 digits at front, if a company legit runs out of numbers, ask for another prefix. The reality. Instead of using the numbers properly (random ID to tie to a user account) they are probably putting some kind of stru…
I think some people are now using a new card number per transaction, with these disposable card numbers, aren't they?
Eliminates risk of 'stealing' a credit card, mostly.
But it would use a butt-ton of numbers. Maybe a UUID?
>the company decided to take makeshift measures such as reusing credit card numbers of discontinued cards after a certain period had passed since cardholders canceled their memberships. However, there are considerable risks of fraudulent usage What are the risks here, and why aren't they already present by someone generating credit card numbers with a RNG? AFAIK credit card transactions are authenticated by at least…
What if they switched CC numbers TO IPV6 addresses? Insane or genius?
I'd like a unique card number with every transaction, that I set online to exactly the amount I'm spending. And it expires after that one use. Eliminates risk of 'stealing' a credit card, mostly. But it would use a butt-ton of numbers. Maybe a UUID?
Sounds like it would take longer at checkout though?
Earlier quoted context omitted.
The problem with that is the purpose of a credit card system is convenience, especially the convenience involved in being able to represent the identifier in an easily compact manner. When it's a few groups of digits, I can print it onto a card or piece of paper, and just plug the digits in whenever I need to validate the number and run a transaction. You can't do that with a token. What happens when I want to use my…
Many of those use cases probably shouldn’t be supported. It would cut down on fraud if we disallowed card not present transactions on unknown devices.
Beyond assigning IINs more judiciously, credit rating systems could drop the concept of "more accounts = better credit". It would discourage people from opening 7 credit cards to raise scores, when 1 or 2 would do.
Earlier quoted context omitted.
The first digits are a header identifying the type of the card, (visa, mastercard...) and probably other characteristics. The main problem is that in Japan everybody has like 5 credit cards, because every big company has its own financial branch and issues cards (maybe to profit from a "reservoir" effect of the accounts?). So you have a credit card linked to your clothes shop, one from your supermarket, one from Raku…
"everyone" may be a bit extreme. There seems to be a national goal of going more cashless, but right now they're one of the most cash-based countries: https://www.statista.com/chart/19868/share-of-cash-payments-... Japan had 82% cash transactions compared to 14% in South Korea. From personal experience it's relatively normal to find a food place in Tokyo which has no card reader at all.
It's more 5 cards than 15, I admit... I edited my comment accordingly. It still seems a lot to me, why not just one?