Security plays a significant role, especially with mobile payment services. As far as Google Pay is concerned, however, there is no need to worry, because during the payment process your data is encrypted and your card number is not passed on to third parties. To deposit a card, you have to enter it in Google Pay. However, the card number is not disclosed to the merchant when you make a purchase. To protect your information, the merchant receives a virtual account number instead of the card number.