1. Price trap: Some merchants will increase the original price of goods to attract consumers, and then sell them at a discount, thus creating false offers.

2. Fake goods/inferior products: You can't touch, try on or try out goods when shopping online. Therefore, some merchants may provide fake and shoddy goods or low-quality products.

3. Delivery delay: Due to various problems in the delivery process, such as weather and traffic jams, the delivery of orders may be delayed.

4. Data leakage: During online shopping, you need to provide your personal information and payment information. If the merchant website does not have adequate security measures, your personal information may be stolen by hackers.

5. The return and exchange process is complicated: If you buy unsatisfactory goods or the size is not suitable, the return and exchange process is likely to give you a headache. Some merchants even have the so-called "genuine products are non-refundable".

Therefore, in the process of online shopping, we need to handle all the details carefully and choose merchants with good reputation and good service guarantee mechanism to buy. At the same time, when using payment methods such as credit cards, special attention should be paid to account security.