DCVV Card by Excelsecu secures e-commerce transactions and improves users’ online shopping experience. The Dynamic CVV card features a 3-digit e-paper display on the back of a standard credit card. eSecu Dynamic CVV Card is an EMV contactless payment card that displays a dynamic value refreshing based on Time-based OTP, preventing card-not-present (CNP) fraud and securing online payments. It drastically reduces CNP fraud. The 3-digit e-paper screen is environmentally friendly and durable. The time cycle can be customized. It has no buttons (automatically refreshed) or a single button option. It is fully compatible with existing credit card systems, making it easy to deploy for merchant-side or acquirer. The smart card chip meets EMV hardware specification or EMV vendors can be specified. It is widely used in various authentication security fields.