"Skimming" occurs when criminals place a device over the ATM card reader to capture data from the magnetic strip on the back of the cards, the SECU reported Tuesday.
The criminals then place cameras near the number keypad of the ATM to capture the card user's personal identification number, or PIN. Thieves then use the stolen card information to create fraudulent cards that are used to make purchases and withdrawals from the victim's banking accounts.
"We have had members' card information used as far away as West Virginia," Brady said this morning.
Brady said the ATM card bandits typically place the skimming devices on gas pumps where the items are much harder to detect.
"It's a lot easier because the devices are not sticking out on a gas pump," Brady said. "On an ATM it's the same color as the machine, but it's sticking out. They place the devices inside the gas pumps so you don't even see them."
Sughrue said the police have not yet determined all of the methods used to steal ATM users' financial information.