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Comment by xamlhacker | Hacker News Reader

Virtual card numbers are not a new thing. For example, some Citibank cards allow you to create separate virtual numbers for different merchants. However, it looks like Final makes the process much easier.

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Even Bank of America offers that, although it's really tough to find and requires Flash. They call it ShopSafe.[1]

[1] https://www.bankofamerica.com/privacy/accounts-cards/shopsaf...

That flash interface has not changed in 16 years, except that a few years ago they added a requirement to enter the three digit code from the back if card.

So that's pretty impressive that they can still support and maintain code that old.

16 years is impressive? What would you call a 33 year old multi million line codebase still being babysat in production today?

It's not the age. It's that they didn't touch it for a decade, and then still had the ability to make changes to it when they needed to.

How do you know they didn't touch it for a decade?

Because I've used it that long, and it did not change in the slightest except for the change I mentioned.

Just because the user interface or functionality didn't change doesn't imply the internals didn't change to keep it maintained and running though, right?

Virtual cards are just about 20 years old, we're starting there, but already working on a lot more pieces to what it takes to be a truly digital credit card.

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