Card 'shimming' device found on ATM in Green Bay

This photo released by the Green Bay Police Dept. shows a credit card "shimming" device found Oct. 6, 2017, on a bank on the city's east side. A credit card is also shown for size comparison.

GREEN BAY (WLUK) -- A device that steals card information was found at a credit union on Green Bay's east side.

Police say a worker at Fox Community Credit Union, at 1820 Main St., found the device, called a "skimmer" or "shimmer," Friday. It was found within the card reader of an ATM that is attached to the building. Investigators believe the people responsible first went to the ATM on Sept. 26, but installed the skimmer about a week later.

Police described the device as a thin piece of metal with a chip reader component that could be accessed wirelessly over Bluetooth. The skimmer was slid into the card slot from the outside, as the internal part of the machine is accessible only from the inside of the bank. The thieves also installed a camera to the top of the ATM that could record people entering PINs.

The credit union says it has contacted all card members and other non-member card holder's banking institutions.

Green Bay police provided a link to information on shimmers. According to the Krebs on Security blog, the devices steal information from chip cards.

To protect yourself, police recommend the following steps:

  • Use ATMs located inside buildings, banks, grocery stores etc.
  • When you slide your debit card into the ATM, it should go in smoothly. If it is difficult to slide in, there may be an issue and the ATM should not be used.
  • Cover your hand with your other hand when you enter your PIN.
  • Monitor your credit card transactions daily and any unknown or fraudulent transactions should be reported immediately.

Anyone with information about the shimming devices is asked to call Green Bay police and refer to report number 17-211750. Anonymous tips may also be left with Crime Stoppers at (920) 432-7867 or online.

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