1, don't scan the code easily
Credit card mobile banking is "consumed" for no reason. One of the more common reasons is that some QR codes are inadvertently scanned by consumers, some of which are conducted by fraudulent means. Some consumers may be exposed to patterns similar to QR codes when shopping online, and shopkeepers will tell consumers to scan QR codes to enjoy feedback. Moreover, fraudsters use these codes to implant mobile phone Trojans into victims' mobile phones and automatically extract relevant information. In just a few seconds, private information such as mobile phone number, card number and password may be passed on to others.
2. Pay attention to protecting passwords and personal data.
It is recommended to change the chip card at the bank. Chip cards are more secure than traditional magnetic stripe cards, and a small piece can hold many functions, which can effectively prevent theft and cloning. Moreover, once the traditional magnetic stripe card passes through ATM or POS machine, it will leave magnetic stripe information. At present, chip card has become the development direction of international general financial card consumption.
Bankers suggest that customers should change their transaction passwords from time to time, whether overseas or at home, including for security reasons. Since the password is the key factor to ensure the security of the funds in the card, any transaction using the password is regarded as the cardholder's own doing.
In addition, according to industry sources, the three numbers on the back of the credit card are collectively called "the last three codes", also known as cvv codes, which are the personal information of the customer's credit card. The card number, expiration date and service restriction code are generated by the coding rules and encryption algorithm of the issuing bank to prevent the card from being "cloned".
Therefore, many bank staff suggest that credit cards can be covered with tape to prevent leakage and ensure the safety of funds.