The Measures for the Supervision and Administration of Credit Card Business of Commercial Banks have corresponding provisions:

Article 56 A card-issuing bank shall formulate a credit card transaction authorization and risk monitoring management system, and equip it with necessary equipment, systems and personnel to ensure 24-hour transaction authorization and real-time monitoring.

For credit card accounts with suspicious transactions, risk management measures such as contacting the cardholder to confirm, adjusting the credit line, locking the account and stopping payment urgently should be taken in time.

Extended data:

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Relevant provisions of the Measures for the Supervision and Administration of Credit Card Business of Commercial Banks:

Article 61? Card issuers can analyze the applicant's credit status and reasonably determine the credit line by inquiring about the credit information system of the People's Bank of China, the risk information sharing system of China UnionPay bank cards and the credit survey.

For customers who apply for the first credit card, the card issuer should sign the bill in person, and the full self-service card issuing method is not allowed. Prudently develop customer groups without stable jobs and income, and strictly grant credit.

Article 62? Card issuers shall not outsource the marketing business of credit card issuance, and shall not adjust the overdraft interest rate, interest-bearing method and interest-free period calculation method of credit cards without authorization. Units are prohibited from handling credit cards, except as otherwise provided by laws and regulations.

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