For the development and design of e-commerce websites, the customer's security and privacy issues must be taken into consideration first. Your e-commerce website must be able to secure the customer's credit card and other sensitive information processing processes. It is best to use SSL encryption and secure and reliable payment ports to complete online payment for the customer's credit card. There are countless online credit card frauds every day. Therefore, as the owner of e-commerce websites, you need to consider the following measures to avoid security and privacy risks. 1. When developing your e-commerce website using SSL encryption, developers should use SSL encryption to encrypt sensitive customer data and credit card information. The "padlock" text is displayed in the lower right corner of the Web page with the SSL encryption layer added. 2. Do not store the customer's credit card information on the server using the payment gateway. When developing your e-commerce site, make sure that your developers use a secure and trusted payment gateway. Your e-commerce site should handle transactions through your payment gateway (such as Authorize.net or Verisign), and make your payment gateway provider responsible for credit card security. If you want to manually process the order, you can store half of the customer's credit card number on the server, and send the other half to you by email. 3. Collect the credit card security code (three digits on the back of the card) for subsequent verification. 4. Use your credit card swipe address verification system to verify the correct credit card bill address (Street and zip code ). If the address does not match, it is best to cancel the order. This method can be combined with point 5th # To prevent 99% of fraud orders. 5. Do not send your credit card bill to other addresses. 6. You may want to collect the name and phone number of your credit card issuer. If the transaction is suspicious, you can call the bank to confirm that the credit card was not stolen. 7. Use common sense. If the order looks suspicious, do not process it, or wait until the next day. In general, if a card is stolen, it will report a loss the next day, and you will also avoid fraudulent transactions. 8. For foreign orders, you may only want to accept a draft or a bank cheque. Sometimes, foreign banks do not have an address verification system, and transactions are dangerous.