And tonight, we have a new warning about a scheme that could target you at a hotel. ABC's linsey Davis shows us the scam that could empty your wallet. Reporter: What started off as a pitstop in this... See More
And tonight, we have a new warning about a scheme that could target you at a hotel. ABC's linsey Davis shows us the scam that could empty your wallet. Reporter: What started off as a pitstop in this New Orleans hotel, ended up a major pitfall for Christine Bicek and her daughter, Katie. It's about midnight. And our hotel room phone rings. So, I answer it. And it's one of the ladies from the front desk. Explaining, I need your card number to put on file, otherwise you need to get out of the room. Reporter: So, Katie gave her debit card number and went back to sleep. I woke up and immediately thought to myself, there's something sketchy about that call. She checks her bank account and realizes all her money is gone. Reporter: Turns out, this particular scam is so common, many hotels across the country present their guests with warnings about it, including the best western, where Christine and Katie stayed. The American hotel and lodging says provides regular updates to hoteliers on fraudulent activities. Like this one, the pizza scam. You'll find flyers under your door when you check into your hotel. You call, you give them your credit card information, you order your pizza. And nothing comes. Reporter: Because they're really is not a restaurant. It's not a restaurant. It's nothing. It's a thief. Reporter: Rule number one, never give credit card information over the phone once you've checked into the room. Go to the front desk. You want to see the person who is getting this information from you. Reporter: Rule number two, check in with a credit card, instead of a debit card. They can move that money out of your bank account in the blink of an eye. Reporter: The advice we consistently heard. It's fine to let your hair down on vacation, but don't let down your guard. Linsey Davis, ABC news, New York.
This transcript has been automatically generated and may not be 100% accurate.