ATM Skimmer Found At Waltham Bank Location: What To Know

WALTHAM, MA — A Waltham bank is investigating whether an ATM skimmer compromised any information of those who used it, police announced.

On Tuesday, the Waltham Police Department announced that an ATM skimmer was found at the Watertown Savings Bank ATM at Market Basket.

"It is believed to have been found in a timely manner by an employee and the institutions involved are monitoring their transactions for any issues," police said. "There have been no reported fraud or larceny victims at this time."

According to the Federal Bureau of Investigation, ATM skimming involves the installation of a device that records bank account data when a user inserts their ATM card into the machine. Typically, a person can then encode that stolen data onto a blank card and use the money as their own.

The FBI says this happens often by a criminal installing a hidden camera onto the machine, as well as a skimmer, which looks similar to the original card reader and also fits over the top of the original one.

Cameras are used to record the cardholder typing in their pin while the skimmer is used to record the bank account information.

However, a new keypad overlay tactic has been used by some scammers in an effort to replace the camera. This overlay is placed on top of the ATM keyboard and can record the PIN number digitally.