US retailer Hancock Fabrics is warning customers that PIN pad units at several of its stores were stolen and replaced with "visually identical, but fraudulent" units last year, putting card data at risk.
In an open letter to customers the firm warns the scam, which occurred between August and September last year, has provided crooks with access to names printed on customer payment cards, card numbers and expiration dates and PINs.
Hancock Fabrics says reported incidents of fraud have been "limited" but says customers who shopped at the store last Summer should check their account statements.
The retailer is working with state and federal authorities and is replacing all PIN pads as well as installing an automated system to monitor them for suspicious activity.