Exactly, but that is not what the article says. It mentions you click on the "Add Card" button. In order to deposit money in someone's account, there are usually fees involved unless it is within the same bank. If between two different banks it is usually called a wire transfer and requires safe pass codes. It would be interesting to know how they are doing this. Not that I trust Facebook, but if it saved transfer fees, I'm sure some people might consider it worth the risk.