Class D: static bar code payment, with the highest risk, the lowest risk prevention ability and the lowest limit. For static bar code payment, the cumulative transaction amount of a single bank account or all payment accounts of the same customer and express payment shall not exceed 500 yuan.
Class C: dynamic bar code payment, verified by less than two effective elements. The maximum daily cumulative transaction amount of a single bank account or all payment accounts and express payment of the same customer is 65,438+0,000 yuan.
Class B: dynamic bar code payment, verified by two or more effective elements (note: fingerprint, password, etc. ) does not include digital certificates and electronic signatures. The daily cumulative transaction amount of a single bank account or all payment accounts of the same customer is up to 5000 yuan.
Class A: Two or more effective elements, including digital certificates or electronic signatures, are used for verification, and banks, payment institutions and customers can independently agree on the dynamic code of one-day cumulative limit through agreement.