They are usually 16 digits. Except when they're 15 like Amex.
Security codes are 3 digits... Except when they're 4 digits like Amex.
Magnetic stripes have two separate tracks with two different encoding schemes developed by different organizations, and some point of sale readers will read one, the other, or both.
But yes, tell me more about how all these things are standardized.
> your objection is short-sighted; there are steps.
My point was that everyone wants a piece of the action, meaning standardized interfaces are disincentivized. This is true in the real world and is true in browsers. Do you have any actual rebuttal to that?
https://en.m.wikipedia.org/wiki/Payment_card_number
They are usually 16 digits. Except when they're 15 like Amex.
Security codes are 3 digits... Except when they're 4 digits like Amex.
Magnetic stripes have two separate tracks with two different encoding schemes developed by different organizations, and some point of sale readers will read one, the other, or both.
But yes, tell me more about how all these things are standardized.
> your objection is short-sighted; there are steps.
My point was that everyone wants a piece of the action, meaning standardized interfaces are disincentivized. This is true in the real world and is true in browsers. Do you have any actual rebuttal to that?