On one of my websites I keep getting fraudulent orders. The name and address are bogus, so they are easy to spot, but I can't figure out how I can set PayPal Pro to reject these orders. It looks like scammers are just trying to see if the credit cards work or not.
I have been blocking the IP addresses when the orders are attempted. As I was looking at the list of IP addresses, I noticed all of them start with 86.
I am not sure how IP addresses work. But would all IP addresses starting with 86 be in a certain country? IF it is, could I just block all IP addresses that start with 86?