Comment by vel0city

> But most debit cards cannot be used with just the numbers.

Every debit card I have in my wallet right now can be used anywhere a VISA is accepted using the same kind of number as a VISA card. I can go to any website that accepts VISA as payment, type in that same 16-digit number as any other kind of credit card, expiration, and CVV and essentially empty it out in a few minutes.

This has been true across many different banks. I have had ATM-only style cards issued in the past but I haven't encountered one of those in over 20 years.