A _lot_ of banks allow you to generate 'virtual credit cards'. It's basically an auto generated valid credit card number. You can use them for recurrent expens

A _lot_ of banks allow you to generate 'virtual credit cards'. It's basically an auto generated valid credit card number. You can use them for recurrent expenses or make them single use (the card is cancelled after first payment). You can also max them to any arbitrary value. So if I need to buy 23.03 dollars of something online I can issue a card that maxes out at 24 dollars. So even if the details were stolen you could only take the remaing cents until it maxed. None of this is new or innovative I never really understood the need for paypal in online shopping.