Crooks in Canada have compromised thousands of cards after installing debit machines that recorded PIN numbers in stores, according to the Canadian Broadcasting Corporation.
CBC says the fraud involves Safeway food stores, a credit union and several independent retailers in British Columbia's Lower Mainland.
The report says "it appears" debit card pads were replaced with ones equipped with devices that transmitted PIN numbers and transaction information to a criminal organisation.
Most of the pads belong to TD Canada Trust, which says it will reimburse people whose cards have been fraudulently used.
The bank also told CBC the introduction of chip and PIN technology should help fight this type of fraud. The Canadian banking industry is currently one-year in to a long-term programme to replace mag-stripe cards with chip and PIN.
Massive B.C. fraud hits debit-card users - CBC