The following is a quote from the StampAuctionNetwork:


"Yesterday on September 26th, 2017, our server was hacked. We have taken the following immediate actions. 1. For the Credit Card info that was compromised. 90% of the credit card data was expired, but we have contacted by email every user affected and provided their card info so they can cancel their card. We have removed all credit card info from StampAuctionNetwork.com. 2. For the 1000 out of 25,000 users that had their user id and password compromised. We changed all the affected passwords, and sent an email to each person instructing them to change their password. We also removed the password security question and answer for those users. 3. We shut down the breach and changed all our internal and external passwords and are currently implementing a two layer password protocol for ourselves. This breach was not made over the Internet. That has not been compromised. The hackers compromised our internal office computers and breached our servers from there. Please contact me at tldroege@mindspring.com if you notice any other problems."

- Tom Droege http://StampAuctionNetwork.com

I also received an additional email indicating that one of my credit cards was one of those that had an expiration date of 2017 or later. Fortunately that card has already been changed with a new date.