I knew about this. I simply wanted something that already is accepted in most places, but also isn’t PayPal but can still create virtual cards for payment. Even if they were to be leaked, no harm done because they’re virtual and probably only had the exact amount of money it needed to complete a purchase (once). So it has 0 at the time of a leak or is probably removed.

No, multiple different countries at random.

Any clever “google Dork” ways in finding these “flock” devices through eg Shodan?