TORONTO/NEW YORK—Retailer Hudson’s Bay Co on Sunday disclosed that it was the victim of a security breach that compromised data on payment cards used at Saks and Lord & Taylor stores in North America.
One cyber security firm said that it has evidence that millions of cards may have been compromised, which would make the breach one of the largest involving payment cards over the past year, but added that it was too soon to confirm whether that was the case.
