How to store bank card numbers on the server?

Question

React

Please suggest solutions. I understand that it does not pose a particular danger, but I want to approach this wisely.
At the same time, it will be necessary to send this data, and not necessarily to the cardholder.

Answer 1

What did I do wrong in this example?

Almost all.

import React, { useState } from "react";

const initialState = [
  { id: 1, name: 'Moscow' },
  { id: 2, name: 'Kazan' },
  { id: 3, name: 'Sochi' },
  { id: 4, name: 'Ekaterinburg' },
];

const App = () => {
  const [ cities, setCities ] = useState(initialState);

  const handler = () => {
    setCities(prevState => [...prevState, { id: 5, name: 'Saint-Petersburg' }]);
  };

  return (
    <div>
      <button onClick={handler}>Click Me</button>
      <ul>
        {cities.map(city => <li key={city.id}>{city.name}</li>)}
      </ul>
    </div>
  );
};

export default App;

Answer 2

do not store in any way, provide acquiring to banks.
Based on the fact that you are asking such a question, this data is guaranteed to be stolen from you.

Answer 3

Please follow the PCI DSS . Is the suitcase of money for certification ready?

Answer 4

Store the hash of the card number + if necessary the last 4 digits for user identification purposes. You don't need anything more