WALMART shoppers are being warned to check their bank accounts after a sneaky skimming device was discovered at a self-checkout.
The thin, card-swiping gadget was one of five devices found at different stores in the same area.
The sinister gadgets were found at businesses in west Gastonia, North Carolina.
Gastonia police say the device at Walmart was stealing card details in real-time, passing them straight to scammers…