Extended answer:

(1) Credit card introduction:

Credit card is a non-cash transaction payment method and a micro-credit payment tool provided by banks to users. The earliest credit card appeared at the end of 19.

Credit cards are divided into credit cards and quasi-credit cards, which provide settlement services, facilitate shopping and consumption, and enhance security; Simplify the collection procedure and save social labor; Promote commodity sales and stimulate social demand. Credit card is a special card issued by banks or other financial institutions to people with good credit, which is used for shopping and spending at designated merchants or depositing and withdrawing cash at designated banking institutions. It is a special kind of credit certificate.

(2) the harm of bad records in the credit report:

1, non-malicious overdue, less overdue within 5 years. It won't affect the loan, but it may if you want to apply for a huge credit card.

2, habitual overdue, overdue for many times within 5 years. For example, there are 12 overdue times in five years, and there is no overdue for more than 90 days.

3, overdue for more than 90 days. This means that the overdue amount has not been paid for 3 months, which is very serious and will affect the application for loans and credit cards.

4. Bad debts. Worst of all, the bank gave up the recovery of the overdue amount of the borrower. If there are bad debts, nothing can be done without handling them.

5. stop paying. The worst. Prevent you from malicious overdraft and stop using your account.