2015年5月的时候，网上冒出过一个消息，说是一家叫欧贝特的法国公司开发出一款具有动态安全码的信用卡模型。 和普通信用卡最大的不同是这款卡片背面的后三位数（CVV码/安全码）每隔几十分钟会自动变...
In May 2015, the Internet had a message, saying that a French company called Obert developed a dynamic security code with a credit card model. And ordinary credit card is the biggest difference is that the back of the card back three digits (CVV code / security code) every few minutes will automatically change...
