Hacker News new | ask | show | jobs
by cpach 409 days ago
Interesting. How does one do that?
1 comments

You can have a dedicated account for your card, in theory you can create an account per valid card and cancel it afterwards or at least nullify it
I think this only work for expense management systems like mercury and brex?
Ah. Does that work only for debit cards or for credit cards too?