The program is also completely free, so if the website is asking for credit card information or other payment you should leave the site immediately.
"If they ask for payment to expedite the order that is a red flag," said Quintana."The USPS site will not ask for that information."
The USPS site will also not ask for any personal information like Social Security Numbers or insurance information. If you think you might have fallen for one of these fake websites, act quickly to try and get your money back. "It's important you take all measures to make sure the transaction doesn't happen," said Quintana."Hopefully it's not too late when you contact your bank to make sure the payment doesn't get processed."
Remember, a good practice for any online purchases is to use a credit card instead of a debit card. They tend to offer more protection against fraud in case your card information is stolen.