I checked my personal Amex account this morning and discovered a small charge from coloadtest.com on 2/18. It's also on my Amex business card and Captial One card. Not on my Chase cards. A Google search turned up a scam of great magnitude across several banks. If not disputed, this small charge will turn into a large one. So check all your credit card accounts. Unfortunately, it means getting new cards with new numbers, so I'm glad I still have a couple of cards that weren't affected.