Skimming is when thieves, using many types of small devices, capture many credit card numbers. Every year fraud happens due to skimming. Skimming is often used by thieves because they can pick up many different credit cards and then go on to make money. Skimming can be prevented by the detection of the devices used to capture the credit card numbers. Authorities can also track down people using many credit cards from one location. Overall, skimming must be stopped in order to help prevent fraud in the first place.