Charged my Amazon.com credit card $18.76 on the 19th of June and then on the 19th of July. I would not have noticed except that I maintain a zero balance but got a "payment overdue" notice for the month of July. Since I had no credit card activity for those 2 months, I went checking and found these two charges which I did not make. I Reported to my credit card company, JP Morgan Chase & Co., and they cancelled the credit card number, refunded the charges and late fee, and issued a new card number. I cannot definitively track down where my card number was compromised but I know it was on file for a brief time under my Account in Amazon.com.