In simple terms, a virtual credit card is a real card that has no entity but can replace the payment function of a physical credit card. A virtual card is mainly composed of a 16-digit card number, an expiration date, and a three-digit code. The birth of virtual cards is actually mainly to meet the needs of customers who are concerned about payment security. Avoid security issues such as personal information being stolen and used for other purposes, or cards being stolen. For example, when buying things in foreign stores, recharging Facebook ads, and recharging games.