Legal analysis: Methods for collecting evidence of credit card fraud: 1. First, check whether a transaction password has been set on the credit card, whether the customer has reported the case in time and has alibi, and whether the customer has intentionally or negligently leaked his or her credit card information. , and find out whether the bank has fulfilled its review obligations. 2. The cardholder's proactive act of providing evidence after the card is stolen can serve as evidence.

Legal basis: According to Article 177-1 of the Criminal Law of the People's Republic of China: The crime of obstructing credit card management falls under any of the following circumstances. Anyone who obstructs credit card management shall be sentenced to three years in prison. Not less than 10 years of fixed-term imprisonment or criminal detention, and concurrently or solely a fine of not less than 10,000 yuan but not more than 100,000 yuan; if the amount is huge or there are other serious circumstances, the sentence is to not less than three years but not more than 10 years of fixed-term imprisonment, and a fine of not less than 20,000 yuan but not more than 200,000 yuan. The following fines apply: (1) Holding and transporting credit cards knowingly that they are counterfeit, or holding and transporting blank credit cards knowing that they are counterfeit, in larger quantities; (2) Illegally holding other people’s credit cards in larger quantities; (3) Using false identity certificates to fraudulently obtain credit cards; (4) Selling, purchasing, or providing others with forged credit cards or fraudulently obtaining credit cards with false identity certificates. The crime of stealing, buying, or illegally providing credit card information. Anyone who steals, buys, or illegally provides other people's credit card information shall be punished in accordance with the provisions of the preceding paragraph. Any staff member of a bank or other financial institution who takes advantage of his position to commit the crime in Paragraph 2 shall be severely punished.