Visa combats online credit card fraud what potential problems can you see with these program for examples?

Online retailers are beginning to observe patterns in online fraud. To curb this trend caution need to be taken and they include; 1.Consider not accepting credit cards from the customer unless full information is provided including the complete address and phone numbers. 2. Create a negative database to identify high-risk transactions and block specific credit card numbers within your system. Consider not accepting credit cards from customers who use "free" email address services " . Submit your customer service telephone number to your credit card processor so it can be included with your merchant name on the customer's billing statement.