I ordered something a couple months ago and when I looked at my bank statement, only minutes later there was a $200 charge for a vacuum cleaner from Massachusetts.
I had my checking account wiped out 3 years ago by using my bankcard online. When it was over a lady at the bank gave this advice,
For online purchases, designate one Credit Card to use, so that company can get used to what you're likely to charge.
So if you're not a big traveler, a charge in Germany will raise a red flag. For me the vacuum cleaner would've probably went through.
As for Midway, with secure ordering, and most others that have it, they are relatively safe. But a person with access to the info can purge it and distribute it. In my case someone had a vacation in Canada. Canada's Wonderland, Montreal Railways, and they kept hitting on it to figure how much more they could take, I had $37.00 left when I found it. I found out I was virtually broke while trying to pay for groceries in a local wal mart, lady hands me a little slip that says, not sufficient funds, I charged it went straight home and jumped on the computer to check my account, embarrasing to say the least.
So a word to the wise, don't use a card tied to your checking account online, and never lose sight of someone else swiping your card, don't let them walk off with it to scan it.