Malware

Canadian Tire cancels 16,000 Mastercards after Heartland breach results in hundreds of cards being misused

Canadian Tire (TSX:CTC) says it has cancelled and is re-issuing 16,000 Mastercard credit cards issued by its financial services arm over security concerns. Spokeswoman Lisa Gibson says the cards were deemed to be at risk after a widespread security breach disclosed last week by Heartland Payment Systems (NYSE:HPY), a U.S. credit card transaction processor....